1918
Bertram Potter was the son of Rupert Potter and Helen Leech Potter. His older sister Beatrice Potter was the author and illustrator of The Tales of Peter Rabbit. Bertram died in 1918, he never married or had children.
He died on June 22, 1918 at age 46.
Beatrix Potter was the author of several stories, such as the Peter Rabbit story. At one point she was engaged to publisher Norman Warne; he died before they ever got around to marrying.
No.
No. Beatrix Potter had one younger brother named Walter Bertram.
Bertram Atkey died in 1952.
Bertram Goodman died in 1988.
Bertram Forer died in 2000.
Bertram Hopkinson died in 1918.
Bertram Goodhue died in 1924.
Kate Bertram died in 1999.
Bertram Wainer died in 1987.