In December 1866, the City Council resolved to give permission to the firm of Coale & Bailey to use the lower end of Green Street to build boats provided they kept the street in good repair. The firm had first begun around 1820 when Asahel Bailey (1778-1825) invented the fishing float for shad—such floats were usually about 75 feet long, made of logs with a wood floor, and had shacks on them. Bailey’s partner was John B. Coale (1818-1896) and they had operated fishing floats on the Susquehanna Flats for several years.

The American Can Company had a plant on the water at the foot of Green Street in the early 1900s and is shown on the 1904 Sanborn Map.

The Golden Crab Restaurant used to be at the foot of Green Street on the water, south side, in the 1950s to early 1960s (before the current condominiums were built). It was owned by Drs. Larry Grace, John Carriere, and Buzzy Council and they also sponsored a local bowling team. The restaurant is shown on the 1955 addition to the Sanborn Map. Shalonn Smith Lawson says the Golden Crab was her first waitressing job and David Johnson, a highly regarded local English teacher, also worked part-time there. He married Jean Montgomery, the daughter of former Mayor Charles Montgomery and his wife, Norma. They had live music every night with Mike Oliveri on sax and it was a popular hangout. Jean Montgomery Johnson now chairs the Havre de Grace Historic Preservation Commission. The Trade Winds Restaurant and Bar was here in the early 1960s, followed by the Anchorage Restaurant.

In 1964, there was a bright red and white showboat (or barge) named the Showboat anchored on the water here, where an amateur and energetic local theatre group called the Susquehanna Players entertained patrons with many evenings of plays. Some were, "A Thurber Carnival,” “Moony's Kid Don't Cry," and "A Perfect Analysis Given by a Parrot."

When the former freight barge was discovered by the late Henry Boyer, whose wife Patricia was an actress with the Players, he bought the 350-ton boat and had it towed to Havre de Grace in the fall of 1962 (The Baltimore Sun, April 19, 1964). It had previously lived at the bottom of the Baltimore Harbor where it had capsized and sank with a load of sugar, only to surface much later after all the sugar melted! The young Players raised $1,500 from Harford County merchants to renovate it, painted “Showboat” along its side, and did all the work themselves. After the Boyers donated the boat to the Harford County Recreation and Parks in 1967, it was towed to Edgewood where unfortunately vandals burned the Showboat. Annie McLhinney Cochran says she and a lot of other kids explored the shoreline there daily—they played on the old show boat and hid in an “underground cave.”

Seneca Point condominiums were built on the south side of Green Street along the water around 2006.