[1] Within a year of the opening of operations a branch from the NY&NH main line south in Stamford to the pier at the Pine Island Steamboat Landing was opened to allow passengers and freight to switch to steamboats running on Long Island Sound.

[2] Despite such attempts to increase revenue on January 1, 1879, the company went bankrupt, and it was taken over in foreclosure in 1883 by the Stamford and New Canaan Railroad, which incorporated in 1882.

[4] On November 1, 1907, the use of 500-volt DC overhead catenary was discontinued, and in 1908, it was replaced with 11,000 volt AC operation.

On January 1, 1971, the State of Connecticut leased operation of passenger service along the New Canaan Branch to Penn Central for $100,000 per year.

[7] On April 10, 1972, Penn Central briefly suspended off-peak service on the branch to install high-level platforms at stations.

[12] In 2019, the Stamford Atlantic Bridge replacement project incorporated a new "Track 7" for the New Canaan Branch operation.

A new Platform, canopy, and catenary lines were installed to support this new capacity at the Stamford Station.

[14] On May 30, 2023, and continuing through August 2023, the New Canaan Branch was shut down for track rehabilitation work, with all service being replaced by shuttle buses.

[17] In October 1976, the CDOT released their report which only blamed the engineer of the northbound train (Number 1994) for excessive speed.

The engineer's union contended that there was a problem with the train brakes, that there was an automatic track lubricator which had been putting down excessive oil for two weeks before the incident and an insufficient signal system.

[21] This resumption was marred by slippery rails caused by rain and fallen leaves, to the extent that service had to be shut down again that afternoon to deploy Metro-North's rail-washing train.