Thomas Ray Lippert

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Thomas Ray Lippert (1950–1999) was a former convict and former business law professor at Southwest State College in Marshall, Minn. who worked at a fertility clinic named Reproductive Medical Technologies Inc. in Utah from 1988 to the mid 1990s where he reportedly replaced customers' semen with his own. [1] [2] In 1974-1975 he was arrested and later convicted for kidnapping. [3] [4] [5] [6]


Assistance website

The website Was Your Child Fathered by Thomas Lippert? has been set up by CeCe Moore, a genealogist. She created the site due to her concerns that other children may have been fathered by Lippert. The site provides a comprehensive list of steps that should be taken, if a family is concerned with the possibility of Lippert's deceptions. [7]

CeCe Moore American genealogist

CeCe Moore is a genetic genealogist who has appeared as a guest on many TV shows and as a consultant on others such as Finding Your Roots. She has helped law enforcement agencies in identifying suspects in over 50 cold cases in one year using DNA and genetic genealogy.

Genealogy Study of families and the tracing of their lineages and history

Genealogy is the study of families, family history, and the tracing of their lineages. Genealogists use oral interviews, historical records, genetic analysis, and other records to obtain information about a family and to demonstrate kinship and pedigrees of its members. The results are often displayed in charts or written as narratives. Although generally used interchangeably, the traditional definition of "genealogy" begins with a person who is usually deceased and traces his or her descendants forward in time, whereas, "family history" begins with a person who is usually living and traces his or her ancestors. Both the National Genealogical Society in the United States and the Society of Genealogists in the United Kingdom state that the word "genealogy" often refers to the scholarly discipline of researching lineages and connecting generations, whereas "family history" often refers to biographical studies of ones family, including family narratives and traditions.

See also

Cecil Byran Jacobson is an American former fertility doctor who used his own sperm to impregnate his patients without informing them.

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Infertility is the inability of a person, animal or plant to reproduce by natural means. It is usually not the natural state of a healthy adult, except notably among certain eusocial species.

Artificial insemination pregnancy through in vivo fertilization

Artificial insemination (AI) is the deliberate introduction of sperm into a female's cervix or uterine cavity for the purpose of achieving a pregnancy through in vivo fertilization by means other than sexual intercourse. It is a fertility treatment for humans, and is common practice in animal breeding, including dairy cattle and pigs.

Fertility is the natural capability to produce offspring. As a measure, fertility rate is the number of offspring born per mating pair, individual or population. Fertility differs from fecundity, which is defined as the potential for reproduction. A lack of fertility is infertility while a lack of fecundity would be called sterility.

Semen collection

Semen collection refers to the process of obtaining semen from male humans or other animals with the use of various methods, for the purposes of artificial insemination, or medical study. Semen can be collected via masturbation, prostate massage, artificial vagina, penile vibratory stimulation (vibroejaculation) and electroejaculation. Semen can be collected from endangered species for cryopreservation of genetic resources.

A sperm bank, semen bank or cryobank is a facility or enterprise which purchases, stores and sells human semen. The semen is produced and sold by men who are known as sperm donors. The sperm is purchased by or for women for the purpose of achieving a pregnancy or pregnancies other than by a sexual partner. Sperm sold by a sperm donor is known as donor sperm. Sperm is introduced into the recipient woman by means of artificial insemination or by IVF and the process may also involve donated eggs or the use of a surrogate.

Virility range of masculine characteristics viewed positively

Virility refers to any of a wide range of masculine characteristics viewed positively. Virile means "marked by strength or force". Virility is commonly associated with vigour, health, sturdiness, and constitution, especially in the fathering of children. In this last sense, virility is to men as fertility is to women. Virile has become obsolete in referring to a "nubile" young woman, or "a maid that is Marriageable or ripe for a Husband, or Virill".

Male infertility refers to a male's inability to cause pregnancy in a fertile female. In humans it accounts for 40–50% of infertility. It affects approximately 7% of all men. Male infertility is commonly due to deficiencies in the semen, and semen quality is used as a surrogate measure of male fecundity.

Thomson Medical Centre Limited is a 190-bed private hospital located at Thomson Road in Singapore. The hospital specialises in gynaecology and in vitro fertilisation (IVF). Thomson Medical Centre runs a 24-hour outpatient family clinic, as well as a range of specialist clinics.

Human reproduction procreative biological processes of humanity

Human reproduction is any form of sexual reproduction resulting in human fertilization. It typically involves sexual intercourse between a man and a woman. During sexual intercourse, the interaction between the male and female reproductive systems results in fertilization of the woman's ovum by the man's sperm. These are specialized reproductive cells called gametes, created in a process called meiosis. While normal cells contains 46 chromosomes, 23 pairs, gamete cells only contain 23 chromosomes, and it is when these two cells merge into one zygote cell that genetic recombination occurs and the new zygote contains 23 chromosomes from each parent, giving them 23 pairs. A typical 9-month gestation period is followed by childbirth. The fertilization of the ovum may be achieved by artificial insemination methods, which do not involve sexual intercourse.

Fertility clinic

Fertility clinics are medical clinics that assist couples, and sometimes individuals, who want to become parents but for medical reasons have been unable to achieve this goal via the natural course. Clinics apply a number of diagnosis tests and sometimes very advanced medical treatments to achieve conceptions and pregnancies.

Semen analysis analysis that evaluates certain characteristics of a males semen

A semen analysis, also called "seminogram" evaluates certain characteristics of a male's semen and the sperm contained therein. It is done to help evaluate male fertility, whether for those seeking pregnancy or verifying the success of vasectomy. Depending on the measurement method, just a few characteristics may be evaluated or many characteristics may be evaluated. Collection techniques and precise measurement method may influence results.

Semen quality is a measure of the ability of semen to accomplish fertilization. Thus, it is a measure of fertility in a man. It is the sperm in the semen that is of importance. Semen quality involves both sperm quantity and quality. Decreased semen quality is a major factor of male infertility.

Sperm donation laws vary by country. Most countries have laws to cover sperm donations which, for example, place limits on how many children a sperm donor may give rise to, or which limit or prohibit the use of donor semen after the donor has died, or payment to sperm donors. Other laws may restrict use of donor sperm for in vitro fertilisation (IVF) treatment, which may itself be banned or restricted in some way, such as to married heterosexual couples, banning such treatment to single women or lesbian couples. Donated sperm may be used for insemination or as part of IVF treatment.

Semen Organic fluid

Semen, also known as seminal fluid, is an organic fluid that may contain spermatozoa. It is secreted by the gonads and other sexual organs of male or hermaphroditic animals and can fertilize female ova. In humans, seminal fluid contains several components besides spermatozoa: proteolytic and other enzymes as well as fructose are elements of seminal fluid which promote the survival of spermatozoa, and provide a medium through which they can move or "swim". Semen is produced and originates from the seminal vesicle, which is located in the pelvis. The process that results in the discharge of semen is called ejaculation. Semen is also a form of genetic material. In animals, semen has been collected for cryoconservation. Cryoconservation of animal genetic resources is a practice that calls for the collection of genetic material in efforts for conservation of a particular breed.

Sperm donation is the provision by a man of his sperm with the intention that it be used in the artificial insemination or other 'fertility treatment' of a woman or women who are not his sexual partners in order that they may become pregnant by him.

Ashok Agarwal Medical Scientist

Ashok Agarwal is the Director of the Andrology Center, and also the Director of Research at the American Center for Reproductive Medicine at Cleveland Clinic, Cleveland, USA. He is Professor at the Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, USA. Ashok is a Senior Staff in the Cleveland Clinic's Glickman Urological and Kidney Institute. He is well-recognized around the world for prolific and cutting-edge translational research in human infertility and assisted reproduction.

<i>Seed</i> (TV series) Canadian television series

Seed is a Canadian television series produced by Force Four Entertainment. The half-hour comedy follows Harry, a likable bachelor and bartender whose previous foray into sperm donation resulted in offspring he was unaware of until now. Seed tells the story of Harry's relationship with his new-found relatives, and the interactions of these families with one another.

Dr Bertold Paul Wiesner FRSE (1901–1972) was an Austrian Jewish physiologist noted firstly for coining the term 'Psi' to denote parapsychological phenomena; secondly for his contribution to research into human fertility and the diagnosis of pregnancy; and thirdly for being biological father to an estimated 600 offspring by anonymously donating sperm used by his wife the obstetrician Mary Barton to perform artificial insemination on women at her private practice in the Harley Street area of London, London, England.

Antisperm antibodies are antibodies produced against sperm antigens.


  1. Michelle Castillo (10 January 2014). "Families in fear after rogue employee may have swapped own sperm at Utah fertility clinic".
  2. "...kidnapper swapped dad's sperm with his own" author Louise Boyle. Published by Associated Newspapers Ltd Part of the Daily Mail
  3. Linda Witt (October 20, 1975). "Was Susan Cochran Kidnapped or Merely Being Wooed in a Strange Courtship?".
  4. Matthew Piper (January 10, 2014). "Report: Utah kidnapper is woman's father due to semen switch". The Salt Lake Tribune.
  5. "Lawyer to stress vulnerability of kidnap victim to mind control". Lakeland Ledger. December 11, 1975. p. 9a.
  6. "FBI agents arrest Thomas Lippert" (PDF). Marshall Independent. March 13, 1975. p. 10 (12 of 44). Archived from the original (PDF) on October 5, 2013.
  7. Boyle, Louise (10 January 2014). "Convicted Utah kidnapper swapped his sperm at a fertility clinic". Associated Newspapers Ltd. Retrieved 7 March 2017.

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