1) Bill Clinton or Gerald Ford 2) Blended-family member 3) Bobby Brady, to Carol 4) Bobby, to carol brady 5) Child by marriage 6) Family member by marriage 7) Greg brady, to carol 8) Greg, to carol brady 9) Hamlet, to claudius 10) Kin through marriage 11) Nero, to augustus 12) Nero, to Claudius 13) Oedipus, to himself 
• (n.) A son of one`s husband or wife by a former marriage.
Step'son` noun [ Anglo-Saxon steópsunu .] A son of one's husband or wife by a former marriage. 
[n] - the son your spouse by a former marriage
noun the son your spouse by a former marriage
a son of one's husband or wife by a previous marriage.