Complex sentence: John Barton Gruelle was born in Arcola, Illinois, on December 24,1880, and at age 2 moved with his family to Indianapolis, Indiana, where his painter father, Richard Gruelle, became associated with the Hoosier Group of painters.
Split into simpler sentences: John Barton Gruelle was born in Arcola, Illinois, on December 24,1880. A the age of two, he moved with his family to Indianapolis, Indiana, where his father, Richard Gruelle, who was a painter, became associated with the Hoosier Group of painters.