Complex sentence: That home had earlier belonged to the Cummins family and another notable San Antonian, the historian and author Light Townsend Cummins, grew up in that same house a decade earlier.
Split into simpler sentences: That home had earlier belonged to the Cummins family. Another notable San Antonian, the historian and author Light Townsend Cummins, had grown up in that same house a decade earlier.