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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 Sperm Donor
Posted by Egg Donor
Posted By Offspring (Male)
Posted by Offspring (Female)
Posted by Offspring (No Gender Specified)
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San Francisco Center for Reproductive Medicine

Doctors Office

Sperm doners from medical students Dr. Robert Nachtigall merged with UCSF?

Donor ID & Info Offspring / Contact Info
Donor ID: unknown
  • European.
  • Height: 6'4".
  • Dark brown hair.
  • Brown eyes.
  • Female born Nov 1984
  • Posted 11/29/05
  • Updated on 09/03/08
  • parent
Donor ID: unknown
  • Started donating May 1985.
  • Stopped donating Jul 1985.
  • Caucasian.
  • Height: taller than 5'10".
  • Weight: slender build.
  • Fair complexion.
  • I am looking for the kind man who donated for my parents to conceive me and my twin brother. From what I have been told: this man was a medical student at the time of the donations in 1985 and was near San Francisco. Dr. Nachtigall has said that he selected these donors from his medical school classes. When I spoke with Dr. Nachtigall several years ago, he stated that he had seen our biological father since that time and believed him to still reside in California. My mother described our donor as being tall (likely 6 feet or slightly taller), sandy blonde hair, and slender build (I must have gotten that from him!). I have also been told he was a runner at that time. I am not looking for a new father, but rather looking to connect with this person to discover any similiarities and thank him for the gift he gave my parents so many years ago.
  • I am a Female born Apr 25 1986
  • Posted 01/10/15
  • Updated on 01/11/15
  • donor_offspring
  • Started donating Feb 1 1993.
  • Stopped donating Apr 1 1994.
  • White.
  • Height: 5'5".
  • Blood type A+
  • Brown Wavy hair.
  • Blue eyes.
  • Fair complexion.
    Egg Donor
  • Read message posted 03/20/06
  • Updated on 09/03/08
  • egg_donor
Donor ID: 36
  • Started donating 1993.
  • Sicilian, Irish, English.
  • Height: 6' 4".
  • Weight: 190.
  • Brown Straight hair.
  • Green eyes.
  • Olive complexion.
  • UCSF.
  • Catholic.
  • Musician,running, cooking.
  • Female born Aug 15 1994
  • Male born Feb 21 1996
  • Read message posted 10/27/17
  • Updated on 10/27/17
  • parent
Donor ID: 54
  • Born Aug 18 1965.
  • Started donating Aug 1 1995.
  • Stopped donating May 1 1996.
  • Caucasian.
  • Height: 5'10".
  • Blood type O+
  • Weight: 165 pounds.
  • Brown Wavy hair.
  • Blue eyes.
  • Fair complexion.
  • B.S. in Engineering, M.S. in Engineering, Ph.D. in Engineering, M.D. (UCSF).
  • Medical Doctor, Electrical Engineer.
  • Protestant.
  • Computers, hiking, traveling, volleyball.
  • I donated only a few times in 1995-1996. I was a medical student at UCSF at the time. I believe that Dr. Nachtigall was the main doctor in charge.
    Sperm Donor
  • Read message posted 02/19/07
  • Updated on 10/02/08
  • sperm_donor Has Donor Survey
Donor ID: 1003
  • Born Jun 18 1976.
  • Started donating Aug 2000.
  • Stopped donating Apr 2002.
  • Height: 5'7".
  • Blood type A-
  • Brown Curly hair.
  • Hazel eyes.
  • Fair complexion.
  • High school graduate.
  • Christian.
  • Reading, skating, swimming, hiking, sewing.
  • I know of 4 live births resulting from my 5 donations. There may be others I am unaware of. One child was due in 10/01. A set of triplets were born in 6/02, who I am in contact with. If any other offspring would care to find me for contact or just wanted/needed information, I am open to any level of contact, direct or remaining anonymous. Also, if they wish to find their half-offspring, either from my other donations or my own children, I will help you any way that I can. I donated at Pacific Fertility Center, but it is also known as San Francisco Center for Reproductive Medicine.
    Egg Donor
  • Female born 1994
  • Female born 1999
  • Female born 2008
  • Female born 2010
  • Posted 03/03/06
  • Updated on 02/22/16
  • egg_donor
Donor ID: 1344
  • Born 1993.
  • Japanese american.
  • Black hair.
  • Brown eyes.
  • Female born Jan 25 2019
  • Posted 02/28/21
  • Updated on 02/28/21
  • parent
There are a total of 9 offspring, 0 sibling matches, and 0 donor to offspring matches from this Clinic.