Your library can order the book Roberta mentioned for you, Mismi. I know this since my husband used our county library to access a book that he was using as a basis for a screenplay. The county library in Marina del Rey, California got a book for him from somewhere in Ohio, and allowed him to keep renewing it.
Roberta, a published author, is she who must be obeyed, so I'd still try to find the book. Or, is that whom must obeyed? Jespah, who needs no introduction, is possibly our funniest writer.. and I can see there could be room for humor and warmth in a bio re your subject.
Hmm, does anyone ever give more than one bio?
mismi, If you were trying to get something published in my area of expertise, I'd say, yeah, listen to me. But outside this area, I don't know much more than anyone else, which is why I asked an editor for advice. The other books you found may be just as good as the one I suggested. The only reason I suggested it is that it's the only one I know about. It's a bit too oriented toward marketing and promotion for my taste. But I thought I'd let you know what the authors said about the bio.
At this point, I think you've got lots of good advice. Try writing something.