Hello: Just wondering: A father [AF] has a son [AS]. The father [AF] marries the dg [BD1] of Mr. [BF] in 1900. The son [AS] then marries the other dg of Mr. [BF] being [BD2] in 1901. Or simply, a father and son marry two daughters who have the same father. No law is broken there is it ?. Bart [!!!] .... ===