Dr. McSherry was a U.S. Marine surgeon during the Mexican War who penned letters and hurried notes as his regiment marched and sometimes during the din of battle. According to the author he wrote about his experiences with no intention of sharing his correspondece with the world. His friend, David Holmes Conrad, to whom the letters were addressed, recommended their publication. The author assented on condition that Mr. Conrad make the story complete by describing, from official documents, the battles of Veracruz and Cerro Gordo.
Thomas Bangs Thorpe
Our Army at Monterey is an account of the proceedings and events which occurred to the "Army of Occupation" under the command of Major General Taylor, from the time of leaving Matamoros to the surrender of Monterey. It includes a description of the three days' battle and the storming of Monterey, and the ceremonies attending the surrender together with the particulars of the capitulation. It is an illustrated account that contains a view of the city.
This is a second edition (revised and enlarged) by the author Benjamin Lundy, an anti-slavery advocate intended as a review of facts and circumstances surrounding the history and proposed annexation of Texas, including the role played by slaveholders and land speculators, in order to re-establish, extend, and perpetuate the system of Slavery and the Slave Trade. You can learn more about the author, Benjamin Lundy here: https://www.tshaonline.org/handbook/entries/lundy-benjamin