Yes, Lifetime Recording was founded by the late Lester Osband, he passed away in 2009. It was a walk in studio located on North St. Rochester NY. I believe the building in no longer standing. There are a lot of vanity recordings and local church choir releases on the label, one notable release is the Tempests "Rockin' Rochester" (Lifetime 1010) from 1960.
The Lifetime records were custom pressed by Rite in Ohio and the number on Johnny & the Brothers of Soul would put the pressing date in early 1968. Cora Lee was the in house publishing company for Lifetime Recordings.
Interestingly, Cora Lee is the co-publisher of Soul Brothers Six "Oh I Need You Yes I Do" (Lyndell 747), written by one Willie J. Ellison. Issue copies are mis-titled "Sold Brothers Six".
The link between the Rochester-based "Soul Brothers Six" and the Philly-based Lyndell label is Walter Rayfield. Rayfield was a truck driver who had a regular route making deliveries between the two cities. Rayfield saw John Ellison performing in a Rochester club and persuaded him to come down to Philly to record. Rayfield passed away in the early 80s.
Back to Lifetime, one of the members of the previously mentioned Tempests, Dave Kasperin, later became the second engineer at the studio working alongside Lester Osband, and took over the operation when Osband retired. He continues recording in Rochester to this day, although he as renamed and moved the studio.
When I recently showed Dave Kasperin the "Johnny and The Brothers of Soul" 45, he listened to it and said he wasn't in the studio for that recording and had no knowledge of the group.
It may be worth tracking down the original members of the "Soul Brothers Six", Sam, Charles, Moses, Gene, and Harry Armstrong. I would start with Sam Armstrong, the flip side of "Johnny and the Brothers of Soul" is called "Goodbye Sam", coincidence?