And, curiosity satisfied. http://www.donorsiblingregistry.com/members/ListRegistry.php?dpIdentityNumber=BFM+9898
Clearly, donor 9898 and his 40% motility are QUITE sufficient. Given that he’s an ID release donor (when the offspring are 18, further info/contact is a possibility), I’m guessing that more parents are inclined to register with the Donor Sibling Registry (DSR) than with a completely anonymous donor. All the same, not all parents from this donor will have registered, and he still has 22 listed offspring! He’s also been “retired”, which would indicate a high number of pregnancies.
It’s a little mind bending to imagine having that many half siblings out there in the world. I’m quite happy that we’ve only got two lovely little people as half siblings to our two!
