Slate's"Seed" project is chronicling the history of the Repository for Germinal Choice, the "Nobel Prize sperm bank" founded by millionaire inventor Robert Graham in 1980. We have been searching for the 240-plus children conceived through the bank, their parents, and the men who donated the sperm for them. The left-hand column on this page displays links to the 10 articles in the Seed series, including the introductionexplaining the project.

The last Seed installment examined how some of the Repository for Germinal Choice's donors turned out, and a forthcoming one will study how some of the kids grew. Today it's the parents' turn.

Here is what parents who used the repository told me about their progeny:

"My son is a genius. He's beyond a genius!"

"They test off the top of the charts."

"This kid is unbelievable.…Now he's interested in quantum theory."

"4.0"

"4.0"

"4.0"

"He's movie-star handsome.…He's a math-science genius.…His coach says he thinks he's Olympic caliber."