It might help those trying to assist you if you RE-POST a whole new message with all the info you have put together...
Including mother's maiden name, approximately when and where ALL children/siblings were born and their names.From another post of yours, I saw that Wilda had a number of marriages and you are looking for at least one other sibling, Jackie Allen Kritzer?Was Jackie born before or after the other siblings?A "migration" of Wilda might help someone to help you.
How sure are you of the Forest Arnold Seaman name?Could he have been Forest I. Seaman?go to www.switchboard.com and enter only Forest Seaman with no other information. You will see there is only one (Forest I. Seaman) who lives in AZ.Perhaps this will help, but then again, I don't know how old these siblings might be right now, or whether they would be old enough to be listed in a phone directory.
There is also a Jack Forest Seaman listed in the California Birth Index, b. 1941, mmn Jones, b. Los Angeles County.