Never knew my grandfather(RIP) and getting no help from the famly....

Please help me. I am 30 yrs old and trying to figure out where "I" came from. Both of my blood grandfathers passed away before I was ever born. Need to say I never have know anyone from there side or where we came from. Trying to get any info. out of the family to names of great grandparents is like pulling teeth. As you can tell no luck. Please someone help. My grandfathers name is Lionel A. Chouinard (died before 1978) who married Lois Woodmansee. They had children of Michael Lionel (RIP-Happy Bday), James Lewis, and Ray Earl. We live in Texas. Thank you for your time, and ANY help will be appreciated. Thank you and much love for ALL THE CHOUINARD FAMILIES out there