Letter from Alex Bradford to Battalion Chief Herman F. Kuch discussing the four (4) stage high-pressure Mack trucks that have been in service under Mr. Kuch's command. The rest of the correspondence features mutual persons of interest between Mr. Bradford and Mr. Kuch.

Letter from Alex Bradford to Gustavo E. Bonadio discussing the benefits attributed to various fire extinguishers and their manufacturers. Additionally Mr. Bradford asks about the "loaded steam" type of extinguishers and the possibility of laboratory testing.

Two letters from Alex Bradford to Margaret Hopkins. The first letter informs Ms. Hopkins that he was back in the United States, namely Washington D.C. Mr. Bradford quickly mentions his family before, stating that he has enclosed a letter from RSM Harry Marshall to Wiggy Bennett. The second letter, asks Ms. Hopkins to inquire Pitman Publishing Company about the purchasing of the book, "Chemistry in Relation to fire Risk and fire Extinction" by A. M. Cameron

Letter from the City of New York Fire Department to Alex Bradford discussing the testing parameters for the 1,000 gallon four (4) stage Hale Pumps. On the back of the correspondence are lines that resemble a postcard.

Letter from Gustave E. Bonadio to Alex Bradford discussing firefighting equipment and techniques used within the New York Fire Department (NYFD).

Letter from Gustavo E. Bonadio to Alex Bradford discussing the problems with loaded stream extinguishers and the various contacts that Mr. Bonadio has attempted to get in contact with to discuss this problem.