Complex sentence: He worked briefly for Schwarzschild & Sulzberger Company of Louisiana, then became associated with L. A. Stafford Wholesale Grocer as an accountant for the Rapides grocery company.
Split into simpler sentences: He worked briefly for Schwarzschild & Sulzberger Company of Louisiana. He then became associated with L. A. Stafford Wholesale Grocer as an accountant for the Rapides grocery company.