Search Registry

Viewing Registry

NOTE: Information shown below has been voluntarily submitted by individuals interested in establishing mutually desired contact between half-siblings and/or donors (genetic relatives).

Disclaimer: This registry is intended strictly for informational purposes, and is neither endorsed nor supported by any individual or organization. Please note that while access to this list is restricted to individuals over 18 years of age, it is up to each and every parent to supervise and monitor their child's use of the Internet.

Posted by Parent Posted by Parent
Posted by Egg Donor Posted by Egg Donor
Posted by Sperm Donor Posted by Sperm Donor
Posted by Offspring Posted by Offspring
Donor match
Sibling match

Ygnacio Andrology Services

1479 ygnacio valley rd; #104 (next door to John Muir Hospital), Walnut Creek, CA  94598  USA · 925-945-1628

YAS is now Fertility Institute of CA, still run by Dr. Zorn, still same address. See also the listings under Fertility Institute of CA..

Donor ID and Special Info Donor Info Offspring / Contact Info
unknown Height: Tall/Athletic Build. Blonde hair. Fair complexion. Computer-Related Profession. The procedure was performed on May 18th, 1989 with fresh sperm (not frozen). I have no profile or ID number, only a receipt and contract. I am hoping these few details and the date of donation/insemination will be sufficient to establish a match. I'm a Girl born Feb 18, 1990
Posted 04/22/14
Updated on 01/04/16 by Jld230.
Posted by Offspring
unknown Born Sep 21, 1966. Started donating 1990. Stopped donating 1993. Norwegian, Slavic, English,Scottish, German. Height: 6'1". Weight: 185. Blood type A+. Brown Curly hair. Blue eyes. Fair complexion. BA, Masters of Education. Teacher. Protestant. Sperm Donor
Read message posted 10/26/06
Updated on 09/03/08 by Timinthecity.
Posted by Sperm Donor
unknown Born Apr 22, 1949. Started donating Jul 23, 1988. Stopped donating May 11, 1989. White; American citizen; my genetics are almost half Swedish; some Scotch-Irish; some English; a bit of German; a small touch of Dutch. Height: 6 feet, 3 inches. Weight: 160 pounds. Blood type A+. Dark Brown Wavy hair. Blue eyes. Olive complexion. Master's degree in zoology, University of California at Berkeley. Evolutionary Biologist (reseacher); teacher; environmental leader. Religion:Other. At this facility, I delivered 16 samples of fresh semen and then one sample--the last one I donated--that was frozen before being used to inseminate a woman. I beleive this is because they changed from fresh to frozen semen at this facility while I was working there. My hair was dark brown at the time of my work at this facility, and is mostly gray now. Sperm Donor
Read message posted 03/30/07
Updated on 09/03/08 by David Seaborg.
Posted by Sperm Donor
EASTBAY MATCH #1 Born Feb 21, 1949. Started donating Aug 24, 1979. Stopped donating Feb 6, 1987. German, Irish, English. Height: 6 foot, 1 inch. Weight: 175 lbs. Blood type A+. Brown Wavy hair. Hazel eyes. Medium complexion. I was part of Doctor H. Stewart Kimball�s �stable,� as he liked to call it. Fresh, not frozen, samples were delivered to his office or to various other doctors around the Bay Area as per his direction. The samples delivered to his office were used in that building or taken to other doctors, sometimes to San Francisco or Contra Costa County including this Walnut Creek office. I have date and time records of each donation and notation of where it was delivered. Where the sample was finally administered I have no way of knowing. Sperm Donor
Read message posted 06/15/09
Updated on 03/14/11 by Cholly5.
Posted by Sperm Donor
UNK DONOR # MATCH (1) Born Feb 12, 1945. Started donating 1978. Stopped donating 1992. German, English, born in Berkeley. Height: 5'8". Weight: 185. Blood type A+. Brown Wavy hair. Blue eyes. Fair complexion. Masters Degree. Writing, computers. Protestant. YAS opened around 1985 next door to John Muir Hospital in Walnut Creek. Please see my note for physical characteristics. Sperm Donor
Read message posted 05/04/05
Updated on 06/16/08 by Bmsinmd.
Posted by Sperm Donor
891018 Born Feb 2, 1965. German. Height: 5'10". Weight: 145. Blood type A+. Brown Straight hair. Blue eyes. Fair complexion. This donor been confirmed through DNA testing of other children to also be CCB #3204, Zygen #236, and CLI #2281. Girl born Mar 29, 1999
Girl born Mar 8, 2001
Boy born Oct 7, 2004
Read message posted 04/29/19
Updated on 08/05/19 by Lmkwp.
Posted by Parent
There are a total of 4 offspring, 0 sibling matches, and 0 donor to offspring matches from this Clinic.