Gabriel Collins was the quatrayle of ... and Joe Haskell.
As no one else has mentioned this, I guess I'll point out that Joe isn't actually a Collins. There are several topics on the forum that deal with how/why Joe has to be related to Chris (especially) through the Jennings side of the family. There's also a family tree in both versions of the DS Almanac that shows this.
Note: doctor, extremely, ... young, ... have already been used.