Yes George Burns and Gracie Allen were really married to each other from January 7th 1926 to August 27th 1964.
Gracie Allen Died at the age of 62 on August 27, 1964 and George Burns died 32 years later at the age of 100 in 1996.
The show George Burns and Gracie Allen is a great show and I love it and watch it all the time on Youtube.