[2] Name on the Register Image Date listed [3] Location City or town Description 1 William Barstow Mansion Upload image August 29, 2014 (# 14000539 ) 300 Steamboat Rd. 40°48′54″N 73°45′45″W / 40.8149°N 73.7624°W / 40.8149; -73.7624 (William Barstow Mansion ) Kings Point Gilded Age mansion built by founder of Kings Point and electricity pioneer now used as American Merchant Marine Museum 2 Cedarmere-Clayton Estates Cedarmere-Clayton Estates September 29, 1986 (# 86002634 ) Bryant Avenue and Northern Boulevard 40°48′36″N 73°38′22″W / 40.81°N 73.639444°W / 40.81; -73.639444 (Cedarmere-Clayton Estates ) Roslyn Harbor Home of William Cullen Bryant and, later, Childs Frick ; now part of the Nassau County Museum of Art 3 Clapham-Stern House Clapham-Stern House June 10, 2005 (# 05000570 ) 48 Glenwood Road 40°49′15″N 73°38′49″W / 40.820833°N 73.646944°W / 40.820833; -73.646944 (Clapham-Stern House ) Roslyn Harbor 4 Clifton Clifton July 22, 1999 (# 99000874 ) 355 Bryant Avenue 40°48′44″N 73°38′51″W / 40.812222°N 73.6475°W / 40.812222; -73.6475 (Clifton ) Roslyn Harbor 5 Cornell-Van Nostrand House Upload image August 28, 2007 (# 07000863 ) New Hyde Park Road and Marcus Avenue 40°45′33″N 73°41′15″W / 40.759167°N 73.6875°W / 40.759167; -73.6875 (Cornell-Van Nostrand House ) New Hyde Park 6 George W. Denton House George W. Denton House August 29, 1985 (# 85001937 ) West Shore Road 40°48′16″N 73°39′19″W / 40.804444°N 73.655278°W / 40.804444; -73.655278 (George W. Denton House ) Flower Hill 7 Thomas Dodge Homestead Thomas Dodge Homestead June 26, 1986 (# 86001387 ) 58 Harbor Road 40°50′20″N 73°41′51″W / 40.838889°N 73.6975°W / 40.838889; -73.6975 (Thomas Dodge Homestead ) Port Washington 8 East Williston Village Historic District Upload image July 18, 1985 (# 85001603 ) Roughly bounded by East Williston Avenue , Roslyn Road, Atlanta Avenue, and Village Green 40°45′28″N 73°38′18″W / 40.757778°N 73.638333°W / 40.757778; -73.638333 (East Williston Village Historic District ) East Williston 9 Eastman Cottage Eastman Cottage October 2, 1986 (# 86002635 ) 130 Mott Avenue 40°48′09″N 73°39′16″W / 40.8025°N 73.654444°W / 40.8025; -73.654444 (Eastman Cottage ) Roslyn 10 Execution Rocks Light Station Execution Rocks Light Station February 23, 2007 (# 07000094 ) In Long Island Sound, 0.9 mi. NNW of N end of NY 101 in Nassau Co. 40°52′41″N 73°44′17″W / 40.878056°N 73.738056°W / 40.878056; -73.738056 (Execution Rocks Light Station ) Port Washington 11 Gould-Guggenheim Estate Gould-Guggenheim Estate September 29, 2006 (# 06000881 ) 95 Middle Neck Road 40°51′34″N 73°41′47″W / 40.859444°N 73.696389°W / 40.859444; -73.696389 (Gould-Guggenheim Estate ) Port Washington 12 Grace and Thomaston Buildings Grace and Thomaston Buildings December 14, 1978 (# 78001865 ) 11 Middle Neck Road and 8 Bond Street 40°47′15″N 73°43′40″W / 40.7875°N 73.727778°W / 40.7875; -73.727778 (Grace and Thomaston Buildings ) Great Neck Plaza 13 Greenridge-Arthur Williams House Greenridge-Arthur Williams House July 22, 1999 (# 99000875 ) 875 Bryant Avenue 40°49′00″N 73°37′49″W / 40.816667°N 73.630278°W / 40.816667; -73.630278 (Greenridge-Arthur Williams House ) Roslyn Harbor 14 Hicks Lumber Company Store Hicks Lumber Company Store October 2, 1986 (# 86002636 ) 1345 Old Northern Boulevard 40°48′01″N 73°39′01″W / 40.800278°N 73.650278°W / 40.800278; -73.650278 (Hicks Lumber Company Store ) Roslyn 15 William Landsberg House William Landsberg House August 18, 2014 (# 14000490 ) 5 Tianderah Rd. 40°49′57″N 73°41′41″W / 40.83253°N 73.69470°W / 40.83253; -73.69470 (William Landsberg House ) Port Washington Home designed and lived in by NY Architect William Landsberg 16 Mackay Estate Dairyman's Cottage Mackay Estate Dairyman's Cottage March 14, 1991 (# 91000238 ) 40 Elm Drive 40°48′02″N 73°37′32″W / 40.800556°N 73.625556°W / 40.800556; -73.625556 (Mackay Estate Dairyman's Cottage ) East Hills 17 Mackay Estate Gate Lodge Mackay Estate Gate Lodge March 14, 1991 (# 91000240 ) Jct. of Harbor Hill and Roslyn Roads 40°47′35″N 73°38′30″W / 40.793056°N 73.641667°W / 40.793056; -73.641667 (Mackay Estate Gate Lodge ) East Hills 18 Mackay Estate Water Tower Mackay Estate Water Tower March 14, 1991 (# 91000239 ) Redwood Drive between Lincoln Drive and Lufberry Drive 40°47′51″N 73°38′23″W / 40.7975°N 73.639722°W / 40.7975; -73.639722 (Mackay Estate Water Tower ) East Hills 19 Main Street Historic District Main Street Historic District January 21, 1974 (# 74001266 ) Main Street from North Hempstead Turnpike to East Broadway, including Tower Street and portions of Glen Avenue and Paper Mill Road 40°47′50″N 73°38′56″W / 40.797222°N 73.648889°W / 40.797222; -73.648889 (Main Street Historic District ) Roslyn Mostly intact 18th- and 19th-century core of Roslyn 20 Main Street School Main Street School February 10, 1983 (# 83001714 ) Main and South Washington Streets 40°49′50″N 73°41′48″W / 40.830556°N 73.696667°W / 40.830556; -73.696667 (Main Street School ) Port Washington 21 Manhasset Monthly Meeting of the Society of Friends Manhasset Monthly Meeting of the Society of Friends September 9, 2009 (# 09000700 ) 1421 Northern Boulevard 40°47′37″N 73°41′40″W / 40.793628°N 73.694386°W / 40.793628; -73.694386 (Manhasset Monthly Meeting of the Society of Friends ) Manhasset 22 Monfort Cemetery Monfort Cemetery January 7, 1988 (# 87002301 ) E of Main Street and Port Washington Boulevard 40°49′52″N 73°40′57″W / 40.831111°N 73.6825°W / 40.831111; -73.6825 (Monfort Cemetery ) Port Washington Cemetery with remains of some early settlers of Cow Neck area. 23 Mudge Farmhouse Mudge Farmhouse July 22, 1999 (# 99000876 ) 535 Motts Cove Road South 40°48′55″N 73°38′13″W / 40.815278°N 73.636944°W / 40.815278; -73.636944 (Mudge Farmhouse ) Roslyn Harbor 24 North Hempstead Town Hall North Hempstead Town Hall December 20, 2006 (# 06001143 ) 220 Plandome Road 40°47′44″N 73°41′56″W / 40.795556°N 73.698889°W / 40.795556; -73.698889 (North Hempstead Town Hall ) Manhasset 25 Old Westbury Gardens Old Westbury Gardens November 8, 1976 (# 76001234 ) 71 Old Westbury Road 40°46′26″N 73°35′47″W / 40.773889°N 73.596389°W / 40.773889; -73.596389 (Old Westbury Gardens ) Westbury 26 Horatio Gates Onderdonk House Horatio Gates Onderdonk House April 16, 1980 (# 80002661 ) 1471 Northern Boulevard 40°47′38″N 73°41′33″W / 40.793889°N 73.6925°W / 40.793889; -73.6925 (Horatio Gates Onderdonk House ) Manhasset 27 Rescue Hook & Ladder Company No. 1 Firehouse Rescue Hook & Ladder Company No. 1 Firehouse May 6, 1991 (# 91000480 ) Jct. of School Street and Skillman Street 40°48′10″N 73°38′48″W / 40.802778°N 73.646667°W / 40.802778; -73.646667 (Rescue Hook & Ladder Company No. 1 Firehouse ) Roslyn 28 Roslyn Cemetery Roslyn Cemetery October 28, 1991 (# 91001534 ) Northern Boulevard, W of jct. with Glen Cove Road 40°48′33″N 73°37′56″W / 40.809167°N 73.632222°W / 40.809167; -73.632222 (Roslyn Cemetery ) Greenvale 29 Roslyn Grist Mill Roslyn Grist Mill October 2, 1986 (# 86002638 ) 1347 Old Northern Boulevard 40°48′01″N 73°39′00″W / 40.800278°N 73.65°W / 40.800278; -73.65 (Roslyn Grist Mill ) Roslyn One of the few remaining Dutch colonial commercial frame buildings in U.S. 30 Roslyn House Roslyn House June 7, 1990 (# 90000880 ) Jct. of Lincoln Avenue and Roslyn Road 40°47′31″N 73°38′28″W / 40.791944°N 73.641111°W / 40.791944; -73.641111 (Roslyn House ) Roslyn Heights 31 Roslyn National Bank and Trust Company Building Roslyn National Bank and Trust Company Building October 2, 1986 (# 86002639 ) 1432 Old Northern Boulevard 40°48′06″N 73°38′49″W / 40.801803°N 73.646931°W / 40.801803; -73.646931 (Roslyn National Bank and Trust Company Building ) Roslyn 32 Roslyn Savings Bank Building Roslyn Savings Bank Building October 2, 1986 (# 86002640 ) 1400 Old Northern Boulevard 40°48′03″N 73°38′52″W / 40.800833°N 73.647778°W / 40.800833; -73.647778 (Roslyn Savings Bank Building ) Roslyn 33 Roslyn Village Historic District Roslyn Village Historic District April 15, 1987 (# 86002650 ) Roughly bounded by Old Northern Boulevard, Vernon and East Broadway Streets, Main, Glen Avenue, and Tower Street 40°47′49″N 73°38′54″W / 40.796944°N 73.648333°W / 40.796944; -73.648333 (Roslyn Village Historic District ) Roslyn Later 19th-century western and commercial portion of Roslyn 34 Saddle Rock Grist Mill Saddle Rock Grist Mill December 27, 1978 (# 78001866 ) Grist Mill Lane and Little Neck Bay 40°47′51″N 73°45′05″W / 40.7975°N 73.751389°W / 40.7975; -73.751389 (Saddle Rock Grist Mill ) Saddle Rock 35 Saint Mary's Chapel Saint Mary's Chapel April 6, 2005 (# 05000270 ) Rushmore Avenue bet Roslyn Avenue and Glen Cove Avenue 40°45′04″N 73°36′35″W / 40.751111°N 73.609722°W / 40.751111; -73.609722 (Saint Mary's Chapel ) Carle Place 36 Sands Family Cemetery Upload image March 12, 1992 (# 92000092 ) Off Sands Point Road just S of jct. with Middle Neck Road 40°51′29″N 73°43′24″W / 40.858056°N 73.723333°W / 40.858056; -73.723333 (Sands Family Cemetery ) Sands Point 37 Sands-Willets Homestead Sands-Willets Homestead September 19, 1985 (# 85002425 ) 336 Port Washington Boulevard 40°48′56″N 73°40′51″W / 40.815556°N 73.680833°W / 40.815556; -73.680833 (Sands-Willets Homestead ) Flower Hill Headquarters of the Cow Neck Peninsula Historical Society. 38 Almeron and Olive Smith House Almeron and Olive Smith House July 12, 2006 (# 06000569 ) 50 South Drive 40°48′23″N 73°42′11″W / 40.806389°N 73.703056°W / 40.806389; -73.703056 (Almeron and Olive Smith House ) Plandome 39 Stephen and Charles Smith House Stephen and Charles Smith House July 22, 1999 (# 99000873 ) 450 Bryant Avenue 40°48′47″N 73°38′45″W / 40.813056°N 73.645833°W / 40.813056; -73.645833 (Stephen and Charles Smith House ) Roslyn Harbor 40 John Philip Sousa House John Philip Sousa House October 15, 1966 (# 66000532 ) 14 Hicks Lane, Sands Point 40°50′35″N 73°43′47″W / 40.843056°N 73.729722°W / 40.843056; -73.729722 (John Philip Sousa House ) Port Washington Home of John Philip Sousa , bandleader and composer of memorable marches, from 1915 to his death 41 Springbank Springbank September 9, 1999 (# 99001128 ) 440 Bryant Avenue 40°48′46″N 73°38′45″W / 40.812778°N 73.645833°W / 40.812778; -73.645833 (Springbank ) Roslyn Harbor 42 Stepping Stones Light Station Stepping Stones Light Station September 15, 2005 (# 05001026 ) Long Island Sound, 0.9 mi. NW of Elm Point at town of Kings Point 40°49′27″N 73°46′30″W / 40.824167°N 73.775°W / 40.824167; -73.775 (Stepping Stones Light Station ) Kings Point 43 Willet Titus House Willet Titus House October 2, 1986 (# 86002652 ) 1441 Old Northern Boulevard 40°48′11″N 73°38′50″W / 40.803056°N 73.647222°W / 40.803056; -73.647222 (Willet Titus House ) Roslyn 44 Toll Gate House Toll Gate House August 16, 1977 (# 77000952 ) Northern Boulevard 40°48′31″N 73°37′56″W / 40.808611°N 73.632222°W / 40.808611; -73.632222 (Toll Gate House ) Greenvale 45 Trinity Church Complex Trinity Church Complex October 2, 1986 (# 86002653 ) Northern Boulevard 40°48′18″N 73°38′44″W / 40.805°N 73.645556°W / 40.805; -73.645556 (Trinity Church Complex ) Roslyn 46 United States Merchant Marine Academy United States Merchant Marine Academy August 29, 2014 (# 14000538 ) 300 Steamboat Road 40°48′44″N 73°45′48″W / 40.81219°N 73.76345°W / 40.81219; -73.76345 (United States Merchant Marine Academy ) Kings Point Training site for members of the U.S. Merchant Marine since 1943 47 US Post Office-Great Neck US Post Office-Great Neck May 11, 1989 (# 88002526 ) 1 Welwyn Road 40°47′14″N 73°43′23″W / 40.787222°N 73.723056°W / 40.787222; -73.723056 (US Post Office-Great Neck ) Great Neck Plaza 48 US Post Office-Mineola US Post Office-Mineola May 11, 1989 (# 88002354 ) Main and First Streets 40°44′35″N 73°38′21″W / 40.743056°N 73.639167°W / 40.743056; -73.639167 (US Post Office-Mineola ) Mineola Only federal project designed by Peabody, Wilson & Brown, and rare New Deal post office without public art in lobby. 49 Valley Road Historic District Upload image April 8, 1977 (# 77000953 ) S of Manhasset on Community Drive 40°46′27″N 73°42′14″W / 40.774167°N 73.703889°W / 40.774167; -73.703889 (Valley Road Historic District ) Manhasset 50 Samuel Adams Warner House Samuel Adams Warner House October 2, 1986 (# 86002654 ) 1 Railroad Avenue 40°47′34″N 73°38′39″W / 40.792778°N 73.644167°W / 40.792778; -73.644167 (Samuel Adams Warner House ) Roslyn 51 Willowmere Willowmere July 22, 1999 (# 99000872 ) 435 Bryant Avenue 40°48′55″N 73°38′48″W / 40.815278°N 73.646667°W / 40.815278; -73.646667 (Willowmere ) Roslyn Harbor