After having played at Kelly's Stable on 52nd Street, Lambert ventured into New York again in 1946 to play at Jock's Music Room on 7th Avenue at 138th Street, Maxine Sullivan being the headliner.
New York Sun - June 20, 1946
"Maxine Sullivan, a songstress with a way all her own, goes to Jock's Place in Harlem, joining a show that features Jimmie Daniels, who was a favourite in Paris before the war; the Al Casey Trio and Donald Lambert, who is billed as the hot genius of the ivories".
New York Evening Post - June 28, 1946
New York Evening Post - July 21, 1946