Built in 1942, by General Ship of East Boston, Massachusetts (hull #403) as the Port Huron for the United States Maritime Commission.
She was one of twenty six of her type built. In 1942, the tug was transferred to the United States Army where she was renamed LTC Herbert L. Kidwell.
She was later sold private and returned to her original name as the Port Huron.
The tug was later acquired by New Haven Transport (Dalzell Towing) where she was renamed as the Dalzelloch. However, in 1963, she was renamed as the Dalzellido.
In 1970, New Haven Transport was acquired by McAllister Towing acquired where the tug was renamed as the Joan McAllister.
She was eventually scrapped.
Originally powered by a single Alco 5TM direct reversing diesel engine. However, the tug was repowered and rebuilt in 1963 with a EMD 16-567C diesel engine with a Falk 21 MB reduction gear at a ratio of 3.96:1. Turning via 16(in) shafts a three bladed 108(in) by 72(in) propeller for a rated 1,640 horsepower.
Her electrical service was provided by two 40kW generators driven by two GM4-71 AC + 1 35kW DC engines.