Named after William Crush Daldy, an Auckland politician, she was built in 1935 and is still an active vessel, maintained by an enthusiast preservation society which charters her out for functions and cruises.

Strong winds had come up as a construction barge was floating the 1,200-ton structure section into place, and manoeuvring boats were unable to keep it under control.

The William C Daldy took up station and kept up the pull for over 36 uninterrupted hours before the wind subsided, burning 40 tons of coal.

[4] The harbour board were intending in 1977 to dispose of the tug for scrapping, but she was instead leased in 1978 (and in 1989 purchased for $1) by an enthusiast organisation, the William C Daldy Preservation Society, which subsequently kept her in working trim, hiring her out for functions and charter cruises.

[5] In May 2023, it was revealed that, following a period of reduced income and maintenance during the COVID-19 pandemic and subsequently, the cost of survey and repairs to maintain her seaworthiness and certification to carry passengers in September would be about NZ$1 million, requiring urgent funding support.