[2] Following a three-year period as a drummer, MacGregor switched to bass guitar as his primary instrument as a result of his desire to be more out front while performing.

Two of his bandmates in Swan, Bobby T Torrello and Joe Kelly, went on to perform with Johnny Winter and Ike & Tina Turner.

He continued with the band until 1982, recording on many more albums including the multi-platinum Live (1977), Stone Blue (1978), and Boogie Motel (1979).

[4] During this time, he also performed and recorded with other musicians and bands, including Randy and the Radiants, the Kneetremblers (which featured fellow Foghat members Roger Earl and Erik Cartwright), and Buck Dharma.

[3] In 1991, MacGregor and his wife, Lisa, moved from Long Island, New York, to Fleetwood, Pennsylvania.