On Canadian lp Honey, Wheat & Laughter. In his 1961 version of Water Boy, pianist Don Shirley makes a clear shift after 1'40" to the melody line of Put Your Hand In The Hand. As the B-side of Cadence single Freedom (I'm On My Way), Don Shirley's Water Boy became a top 40 hit US, so McLellan might have known it and might even have thought it belongs to the public domain.
Ocean [n°2 US]
Nana Mouskouri [as Mets ta main dans la main]
Allison Durbin [Aus]
Lill Lindfors [as Lagg din hand in hans hand]
Hortense Ellis [with Brent Dowe]
Cindy & Bert [as Ich fang eine Hand]
Joe Reed & The Niner Nuggets [quarterback with the San Francisco 49ers]
Gene MacLellan [backing vocal: Anne Murray]
John Terra [as Neem Mij Mee]
Gene McLellan also wrote Anne Murray's millionseller Snowbird (see there).