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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.

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Seattle Sperm Bank (European Sperm Bank USA)

Sperm Bank

Branches in Seattle and New York. (Main office in Copenhagen - see Denmark). dba: Seattle Sperm Bank. When donors are contacted by offspring or parents they sometimes contact their sperm bank to make sure that the people are legitimate. The DSR heard feedback from a woman who located her donor via an Internet search, reached out to him, and received a very warm and welcoming reply. He was happy to be in touch. He did however first reach out to Seattle/European Sperm Bank first to make sure that the woman was legitimate. Seattle/European Sperm bank sent her the following email: " *** has tried to contact one of our donors and according to our files this must to be you. As I hope you understand such action is not appropriate according to the term which the donor sperm is bought. Our donors are in the program to help women or couples having children. If it is an open donor the donor can be contacted, but only by the child and when the child is grown up. These young donors trust that they can be anonymous and this must be respected. Please confirm that you will not proceed with any contact to donor but comply with the terms and conditions, you have agreed to at the time of your purchase."


Donor ID & Info Offspring / Contact Info
Donor ID: 9852 "DUKE"
  • Born 1986.
  • Height: 73.
  • Blood type O+
  • Weight: 190.
  • Child born Feb 16 2018
  • Posted 02/21/24
  • Updated on 02/21/24
  • parent Has Photos
  • Born 1986.
  • Caucasian, English, French, German, Irish, Norwegian, Scottish.
  • Height: 6’1”.
  • Weight: 190 pounds.
  • Brown hair.
  • Blue eyes.
  • Fair complexion.
  • Female born Aug 21 2018
  • Posted 06/15/18
  • Updated on 06/12/19
  • parent
  • Born 1986.
  • Started donating Nov 22 2015.
  • Caucasian, Irish, English, German, Norwegian.
  • Height: 6' 1".
  • Blood type O+
  • Weight: 190 lbs.
  • Brown Wavy hair.
  • Blue eyes.
  • Medium complexion.
  • B.A., Environmental Studies.
  • Marine Diver for Commercial Pipeline.
  • Music, exercise and landscaping. Donor plays guitar and drums, enjoys hiking, painting, drawing, sports,.
  • Loves to travel, visited the Philippines according to voice interview provided by Seattle sperm bank. Donor worked as a Science teacher, research assistant, land restoration technician, and climbing gear specialist in the past. Donor "Duke" is open to meeting donor offspring in the future :)
  • Male born Nov 19 2017
  • Read message posted 03/08/18
  • Updated on 03/14/18
  • parent Has Photos
  • Causcasian/Irish, English, German Norwegian.
  • Height: 6'01.
  • Weight: 190.
  • Brown hair.
  • B.A. Environmental studies.
  • Marine Pipeline Surveyor.
  • For this donation we had an egg and sperm donor that are not in a relationship (so the embryo is 'created' rather than being from some else's IVF cycle). The female donor # 423122 and is from the California IVF facility (California Conceptions program) who was a softball player on the UCD team, and the male donor # 9852 and is from the Seattle sperm bank. The embryos were created at Cal IVF (Cal Conceptions). The male donor is technically an open donor named Duke, but I believe through the process at Cal Conceptions he generally remains anonymous in terms of our ability to contact him. The embryo ID is 2017-02-423122-9852.
  • Female born Dec 9 2017
  • Read message posted 12/27/17
  • Updated on 03/07/18
  • parent
There are a total of 4 offspring, 4 sibling matches, and 0 donor to offspring matches for this donor.