We don't have the 1894 edition of the Ranch Diary kept by Mary Elizabeth Tyler,
but this article documents the date (July 31, 1894) that Ollie's leg was broken
when he fell under the wagon hauling stone for the construction of the ranch house.

He told his son, Owen that because he couldn't walk with the broken leg, they would put
four-year-old Ollie on a horse in the morning, and there he'd stay all day.