Heather McCrimmon

Heather McCrimmon was a companion of the the Doctor.

Biography
Heather was, in her native time, a history student at Edinburgh University. She joined the Doctor so that she could experience historical events first-hand for her history essay. (DWAM: The Chromosome Connection)

It is suggested she is a descendant of Jamie McCrimmon, a companion of the Second Doctor.

Heather was later joined in her adventures with the Doctor by Wolfgang Ryter.

Personality
to be added

Continuity
The World Shapers in Doctor Who Magazine, which featured a much older Jamie McCrimmon had implied that he died before having any descendants.

Creation
Heather was created by 10-year-old Joanne Hall in a competition sponsored by Doctor Who Adventures to create a new companion to appear in the magazine's comics.