(c) Jef JatrasJack was head of Nimbus 9 production in Canada. Bob Ezrin worked for Jack at the time he produced the early Alice albums and Jack himself produced 'Muscle Of Love'. Jack sadly died in May 2011.

His son also engineered some AC stuff in the 80s!
(Renfield, July 1996)

From Mixonline.com:

Richardson started out playing double bass in school orchestras, graduating to local and regional dance bands in the 1940s, like The Westernaires in Toronto. In 1949, he got married and began a family that grew to include four children (including son Garth, who has made his own mark as an engineer for Rage Against the Machine and Red Hot Chili Peppers). By the time he was done as a full-time producer in the early 1980s, Jack Richardson's discography had swelled considerably: All of the classic hits for the Guess Who, including “These Eyes” and “American Woman”; seminal records for Alice Cooper, including hit songs “I'm 18” and “School's Out”; three of the most successful Poco albums, which included the hits “Good Feelin' To Know” and “Crazy Eyes”; Bob Seger's Night Moves, which would itself be a crowning achievement in any production career (see April's “Classic Tracks”); and dozens of other records for artists that span genres and decades, including Badfinger, Joe Beck, the Brecker Brothers, the Allman Brothers, Dickey Betts, Michael Bolton, Papa John Creach, Starz and White Wolf.

Today, Richardson continues to teach classes in audio engineering and production, a pursuit he began in 1984 at Fanshawe College in Ontario, though he still picks one local or regional band a year and takes them into the studio. There's hardly a late-night television commercial hawking greatest hits collections that doesn't include one or more of his productions; yet, at nearly 72, he still gets a kick out of Toronto garage bands selling records he does with them off the stage after gigs. “After a while, you can't keep it up like you used to, to make records,” he says. “But it's hard to not do it at all after you've done it so long.”

The success of the Guess Who records led to Alice Cooper contacting you. Cooper was already making a name with shock value. How did you approach those records you did with him?

Shep Gordon, Alice's manager, contacted me. [Alice] was the Darth Vader of the music business at the time, but all I think I said was, “We don't have to kill chickens onstage to make records.” But it was these productions that we brought Bob Ezrin in on, as a kind of apprentice. I did Muscle of Love; Bob and I did Love It to Death and Killer together. I had agreed at first to do four sides with Alice. We did them at the RCA studios in Chicago, and Brian Christian was the engineer again, though later we also did some recording at Record Plant in New York, and Muscle of Love we started at Sunset Recorders in L.A. and finished at Record Plant. On the first session, we had Alice come in dressed in full Alice Cooper regalia, and Brian could never bring himself to call the guy “Alice.” I don't put much credence in superficial appearances. I'm more interested in what they're doing musically and if they're serious about that. We actually became pretty good friends.

How was Cooper different as a production client from Guess Who, besides sartorially?

These were the records I moved to 24 tracks on. And the band was pretty raw players by comparison. That was something of a surprise. I'd have thought that a band who had already made three or four records would have been better players. I'm talking about issues like getting the guitars in tune. But the shock value of the music actually overcame these deficiencies. Still, to make the records, I needed a very sharp razor blade for edits. There was no Pro Tools then. I often took a chorus from one part and a verse from another and edited them together. We often worked from a tape drum loop. The albums were done much more as overdub sessions than ensemble playing. We also brought in some outside players, like Rick Derringer on Killer and Jack Bruce on Muscle of Love. But they were also attracted by Alice's notoriety. Alice, himself, was a very good singer in terms of knowing the songs and giving a good delivery. He was also a pretty nice guy. I would have brought him home to meet my mother. He was also a soap opera fanatic — watched them all the time in the studio.