Complex sentence: Marietta Pierce Johnson (1864--1938), educational reformer, was born in St. Paul, Minnesota in 1864 and moved with her family to Fairhope, Alabama in 1902.
Split into simpler sentences: Marietta Pierce Johnson (1864--1938) was an educational reformer. Johnson was born in St. Paul, Minnesota in 1864 and moved with her family to Fairhope, Alabama in 1902.