Isadore was born in 1931. Isadore Baca ... He passed away in 1998.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VRD4-ZG2 : accessed 13 January 2017), Isidor Baca in household of Jake Baca, Pueblo, Election Precinct 16, Pueblo, Colorado, United States; citing enumeration district (ED) 51-19, sheet 15B, line 80, family 366, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 475.