Bingo! I know Pinconning quite well, in fact my brother lives there. We are indeed talking about the same family.
While there were a couple of Art Tacey's from Essexville, they're all part of the Prosper Tessier/Henriette Ducharme family. If your dad had a sister named Hattie Hugo, you would be my grandpa's first cousin. Let me know what your dad's dob was and, if you know it, what his parents' names were (I ask for both because, as I'm sure you're aware, there seemed to be a small pool of names shared by everyone and his cousin in this family. Sometimes it's easier to figure out who their spouses were than who they themselves were.)
There's a lot research done in this family, and TW Denomme has us well documented in "Our Huron County Ancestors" (though with a few notable errors...such as listing the family as being from Essexville Ontario.)
I'm reentering my tree after I goofed it up this summer. But I'll be glad to send you the rough-in. In short, we trace back through Ignace Tessier dit Lavigne, to his father Urbain, one of the original settlers of Montreal. On another side, we trace back through Prosper's wife, Henriette Charron dite Ducharme to such notables as Catherine de Baillon (there's a whole society devoted to her and her genealogy back to Charlemagne was just completed and published by three notable genealogists.) Both lines are early settlers of Canada.
If you're related to the Hugo's or Richard's at all, I can also help.
Send me your email address, and I'll be glad to pass along what I have.
Jan Nearing
jnearing@netscape.netChicago