Also includes Isaac's insurance policy payment records from The Travelers and Union Central insurance companies.

During his working career, Isaac took business trips, traveled personally and had salesmen call on him as documented by a number of business cards and receipts in his files from individuals, doctors, professionals, stores, and businesses in the following cities: Paris, France, Pautucket, RI, Philadelphia, Cincinnati, Rochester, NY, New York City, Chicago, Friedbergerlandstrasse (a street), Wiesbaden, Germany, Louisville, KY, Denver, CO, and Frankfurt Germany. There are hotel receipts in the file from Atlantic City, Philadelphia, Geneva, Switzerland, and New York.