I think Lida was David's third wife
I think Lida was David's third wife, not his second. He had children by his first and third wives, but none by his second.
(This is a recollection from having worked with them more than ten years ago, as a programmer on a project based on David's Optical Character Spacing. Sorry, I don't have any references to hand.) —Preceding unsigned comment added by TheHouseOnTheHill (talk • contribs) 18:57, 18 August 2009 (UTC)