Complex sentence: Confederate scout, cowboy and stage actor with "Buffalo Bill" Cody's travelling revue, Texas Jack Omohundro died of pneumonia a month before his 34th birthday in summer 1880 in Leadville where he was living on a small estate with his wife, ballerina Giuseppina Morlacchi.
Split into simpler sentences: Confederate scout, cowboy and stage actor with "Buffalo Bill" Cody's travelling revue, Texas Jack Omohundro died of pneumonia in Leadville in the summer of 1880, a month before his 34th birthday. He was living there on a small estate with his wife, ballerina Giuseppina Morlacchi.