I am looking for any information on family of Carson J. Robison. Carson was a famous country singer. He was well known for being able to whistle two tones in harmony at the same time. He was born August 4, 1890 Oswego, Kansas. At the time of his death, March 24, 1957, Carson was survived by his wife Catherene Barrett Robison, a daughter, Mrs. Daniel Murphy (Patricia) and three sons: Donald, Robert and Kenneth. Carson's dad was Albert Lender Robison. Any help would be great. Thank you Jan