The Denison, Bonham and New Orleans Railroad
Where this maps shows the line through Ambrose is incorrect.
I own the station grounds and part of the rail bed. The line passed down along just north of Pryor St. Station was at corner of Pryor and Chaney.
The Katy (DB&NO) depot used to be a block (maybe two) north of the T&P depot. Its tracks looped around the northeast part of Bonham.