A Scottishclan is a Scottish family which (usually but not always) has its own tartan[?]. Most clans in Scotland didn't get on. Also note that some tartans[?] don't come from clans but from regiments-for example Black Watch[?]. As names change a lot of clans go by more than one name-MacCutcheon is the same clan as MacDonald for instance. Also one family name may have more than one clan.
... couples living together, 12.2% have a female householder with no husband present, and 39.0% are non-families. 31.9% of all households are made up of individuals and 16.8% ...