The group is Canadian, based in Toronto. But apparently, there is more than one group that has recorded under the name "The Lincolns". The track I've posted (which does play in Canada) is "On Broadway Medley" I believe other groups who have used the name Lincolns have been based in the U.S.
I had no luck. Wikipedia says this about the Lincolns...
"From Wikipedia, the free encyclopedia
The Lincolns are a Canadian
rhythm and blues band, fronted by
Prakash John and based in
Toronto, Ontario.
[1][2] The band performs music in the style of the 1960s and 1970s.
History[edit]
In 1979, after leaving the
Alice Cooper tours, Prakash John returned to Toronto and founded an R&B band, The Lincolns. He recruited musicians from previous tours. The Lincolns performed locally in Toronto and also toured around Ontario.
[4] In August, 1987 they appeared in the CBC television special "Live at the
Astrolabe,".
The band has released two albums,
Take One on
Attic Records and the independently released
Funky Funky Funky, originally commissioned by the
CBC.
With various personnel changes, the Lincolns continue to play around Canada, performing R&B music in the style of the 1960s and 70s.
In 2016 the band performed as part of the musical production Simply the Best."