Complex sentence: She eloped with Eddie Dowling when she was 15, and from 1919 to 1934 teamed with him for Ziegfeld Follies and in "Thumbs Up" in 1934, after which she retired.
Split into simpler sentences: She eloped with Eddie Dowling when she was 15. From 1919 to 1934 teamed with him for Ziegfeld Follies and in "Thumbs Up" in 1934, after which she retired.