Is Merle Haggard Related to H Rider Haggard?

No, Merle Haggard and H. Rider Haggard are not related. Merle Haggard was a famous American Country Music singer and songwriter, while H. Rider Haggard was a British author known for his adventure novels in the late 19th and early 20th centuries. Their shared last name is coincidental, and there is no familial connection between them.