Created another Lazarus kit omitting my Mom as spouse and using just Dad's sibs and kids plus children of his first cousin. Results make much more sense. Suspect that Mom's contribution muddied the waters. She and Dad are 4th cousins on two lines even though they are not ancestry or GEDmatch matches. Mom does match one of his sibs on ancestry and Mom's cousins match other sibs. My parents also share several populations...N and S Irish, Alsace-Lorraine, Hesse, colonial MD and PA in same communities. Anyone with a similar situation may want to try Lazurus with and without a spouse.