Interesting factoid: what became the Peanut line opened in 1853 as the " Canandaigua and Niagara Falls Railroad". The Canandaigua and Elmira Railroad Company (from Horseheads/Elmira to Cananaigua) had already been running a year or two, connecting with the Erie RR on the south end. -- Because the Erie was broad gauge at the time, these other two RR's were too - so the Erie had a broad gauge connection all the way to Tonawanda. (The Erie originally only went to Dunkirk, NY, on Lake Erie, much further south/west than Buffalo, which it realized was a mistake, so it wanted a connection to the Buffalo/Niagara area.) So for a few years in the mid 1850's you probably could see Erie equipment in Canadaigua and on the future Peanut line all the way to Tonawanda! Too bad photography and the WWW hadn't been invented yet.
THis arrangment only lasted ~4-5 years, until the Canadaigua and Niagra Falls RR and the Canadaigua and ELmira RR both went into bankruptcy, and when they re-emerged the Canadaigua-NF line (under a new name) was leased to the NYC, changed to standard gauge, and nicknamed the Peanut line (1858?). You have to wonder if the NYC leased the Peanut line specifically to deprive the Erie of a route to Buffalo/Niagara ...
Related, the Elmira-Canadaigua line (also with a new name) stayed moslty under Erie control until 1866, but then it was leased to the Northern Central (which in turn was later leased to the PRR).
Source: http://en.wikipedia.org/wiki/Elmira_and ... o_Railroad