Complex sentence: When the Soldiers Home was being organized in 1851 and 1852, it was intended to have at least four branches, and its organization and administration were based on the army's command structure and staffed with regular army officers.
Split into simpler sentences: When the Soldiers Home was being organized in 1851 and 1852, it was intended to have at least four branches. Its organization and administration were based on the army's command structure and staffed with regular army officers.