Hi Jackie, Do you have a copy of Merle's obituary?
A Merle Lee Beard b. 23 Dec 1917 Last Residence=Vista, San Diego, CA Died=26 Oct 2008. His soc. sec. # was assigned in Iowa before 1951. Source=Social Security Death Index.
I'm not very familiar with San Diego County but I'd look for an obituary volunteer at raogk.org, read guidelines, choose California and choose San Diego Co.
OR do a Google search on the San Diego County Public Library or Vista Public Library.
Have you found Merle and Madeline's marriage record? I'd search in Jasper County, IA because that's where Merle was living in 1930. Then I'd search the birth records for the children but you might not be able to do this since they were born in the 1930's or 40's.
I did find a Madelyn A. Beard b. 30 Nov 1921 Last Residence=Ontario, San Bernardino Co., CA Died=14 Jan 2006. Her soc. sec. # was assigned in CA before 1951. Source=Social Security Death Index.
I know it's a long shot but worth checking out. There is an obituary volunteer at freepages.genealogy.rootsweb.ancestry.com/~obitl/ . Scan down to San Bernardino Co. and look for Ontario.
OR Contact the San Bernardino Valley Genealogical Society, sbpl.org/genealogy.html . Successful Searching!