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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)
Has Medical Info
Has Photos
Donor Q&A
Donor Match
Sibling Match

Dr. Chetkowski, Alta Bates

Doctors Office

Located next to Alta Bates Hospital in Berkeley, CA


Donor ID & Info Offspring / Contact Info
Donor ID: unknown
  • Born Nov 29 1954.
  • Started donating Oct 1977.
  • Stopped donating Dec 1986.
  • Jewish American (Russian/German Jewish).
  • Height: 5'7".
  • Blood type AB+
  • Weight: 150.
  • Brown Curly hair.
  • Hazel eyes.
  • Fair complexion.
  • Undergrad and doctoral, UC Berkeley.
  • Biological Anthropologist.
  • Jewish.
  • Rock climbing, hiking, reading, union activist.
    Sperm Donor
  • Read message posted 02/16/07
  • Updated on 10/02/08
  • sperm_donor
Donor ID: unknown
  • Jewish.
  • UC Berkeley grad student in biological sciences.
  • I am a Female born Aug 29 1987
  • Read message posted 04/13/19
  • Updated on 04/13/19
  • donor_offspring
Donor ID: unknown
  • Austrian, Hungarian, English, Polish.
  • Height: 5'11".
  • Blood type B-
  • Weight: 170.
  • Brown hair.
  • Blue eyes.
  • UC Berkeley .
  • Seeking out my donor father (donation received by my mother on 12/10/1989) - Aside from the information listed, I know that he was studying East Asian Languages (formerly called Oriental Languages), Martial Arts, and he took part in Water Polo.
  • I am a Female born Sep 1990
  • Posted 06/05/20
  • Updated on 06/06/20
  • donor_offspring Has Photos
Donor ID: unknown
  • Blonde hair.
  • I am a Child
  • Posted 12/02/20
  • Updated on 12/02/20
  • donor_offspring
Donor ID: 5598
  • Height: 5'5".
  • Brown hair.
  • Blue eyes.
  • Male born Jun 7 2019
  • Female born Apr 30 2021
  • Posted 07/14/22
  • Updated on 07/15/22
  • parent
  • Born Sep 7 1993.
  • German, Hungarian, Swedish.
  • Dark brown Wavy hair.
  • Blue eyes.
  • Fair complexion.
  • Bachelor's Degree.
  • Christian.
    Egg Donor
  • Child
  • Posted 07/31/19
  • Updated on 07/31/19
  • egg_donor
There are a total of 6 offspring, 3 sibling matches, and 3 donor to offspring matches from this Clinic.