Morgan horses grazed where Huron High now stands
Ruthven after he retired from the UM bought a house on the Huron out there on Fuller, not the cobblestone house but another house, and started raising Morgan Horses across the street where the Huron playing fields are now. If you will remember, the school didn't have playing fields for the first couple years as they had to buy Ruthven's land separately.
This explains the spatial disconnect between the school and the playing fields. The land on the other side of the school, towards the VA, is owned by the UM and there's a medical waste dump there so Huron can't go that direction for expansion or playing fields.
I do remember the horse riding stable on the other side of the river where the tennis courts club is now. There was a barn and a lot more wooded land which I guess is the golf course now. I had my first (horrifying) horseback riding experience there at age 11 or 12.
-- Fran Wright