Cheryl Jean Ferguson was born in Fresno in 1944. She appears to have married Kenneth H Severson in Contra Costa County in 1961. He was born about 1945 and a record I find shows a Kenneth Harvey Severson b in late 1944 in Alameda. Cheryl and Kenneth had at least 1 child in 1962 in Alameda. I don't see a divorce record for these two but I can only see them through 1985.
I have a location for a Cheryl J. Ferguson with the right age in CA. I also have a location for Kenneth that could be followed up for her location or to determine if she is still living.
I have no clue where this Aguilar gentleman is (you gave no identifying info and his name is too common).
If you would like to pursue this please contact me at
bexargenliblookup@gmail.com