I absolutely love the name
Gertrude and if it didn't seem to be so universally reviled I would use it in a heartbeat.
I like both
Gertie and
Trudy, but I prefer
Gertie. If I ever get a female dog I think she'll be called
Gertrude.
I taught a little
Trudy (just
Trudy) a few years ago, and no one seemed to think her name was weird or ugly, so maybe in a few years
Gertrude can make a comeback like
Hazel did. I remember when I was a kid everyone thought my middle name
Olivia was an ugly old lady name.