Looking for family information

Hello,
We are looking for information on my husbands family, the Kin Kade's. My husbands dad doesn't remember much, and he is the only child of his dad, but his dad has 8(?)siblings, so we know that someone out there has to know more about our family. So if any one can help, please contact us. We would really like to learn about our family and preserve it for our children. Here is the information that we do have.
My husbands dad is: John Robert Kin Kade-born 2-24-1937
His dad's name was: John Samual Kin Kade-born 10-2-1905 he went by Jackie, he has since passed, in 1988.
My husband's dads grandparents, we are unsure of their name but his grandmothers maiden name was Raffitt, but it could be spelled with one "t". That is all we know so far on them.
His dad has 4 brothers, 4 sisters--we don't know any birth dates yet, we know that Thomas and Anna are still alive. Thomas lives in Missouri and Anna lives in Illonis and her maiden name is Pruitt.
Brother 1: Thomas ? Kin Kade
Brother 2: Charles Fred Kin Kade-but he went by Freddie
Brother 3: George ? Kin Kade
We are unsure of the other brother's name.
The sisters names:
Sister 1: Ruby ? Kin Kade
Sister 2: Pearl ? Kin Kade
Sister 3: Anna ? Kin Kade-maiden name: Pruitt
We are unsure of the other sister's name.
This is all the information we have, the brother Thomas is spelling his last name Kinkade, but my husband's dad spells Kin Kade, so we are not sure who is spelling it right or wrong. We were told that the spelling was changed at one time. If any one has any information please contact us.
edak22@hotmail.com-Mark and Elizabeth