OK, I'll end it here, the answer is:
History by Mai tai.
Maggie was his(Dennis's)Tory.
I said "who is Maggie?" His Tory
My ti me was a clue to the group
Grandad, was an example of how I use syllables to arrive at an answer.
Columbo was too CONSERVATIVE
I mentioned the title several times.
Dennis is very possessive of her, using the pronoun to indicate a possession of his.
My last post stated that the title and group was in the text of my posts.
Well it was obvious to me anyway.