My grandfather's name was Mack or Mac Maxwell.  I have no other information about my grandfather except that possibly he remarried after he and my grandmother divorced and had more children, possibly in Idaho or Iowa.  He was some sort of engineer, had something to do with Tinker Air Force Base in Oklahoma City in the 40's (?).  Does this ring a bell with anyone?  I would like to begin tracing a geneology.  Thank you.