Item 1: John P. Brock, Headquarters, Virginia Regiment, Camp Buena Vista, [Mexico], to Mr. and Mrs. Archibald Brock, at Spartapolis, Rockingham County, Va., 1847 January 1 Item 2: John P. Brock, at Fort Ohio, opposite Camargo, to Mr. and Mrs. Archibald Brock, at Spartapolis P. O., Rockingham County, Va., U.S., 1847 March 24 Item 3: J. P. Brock, at Camp Virginia, opposite Camargo, to George E. Deneale, at Harrisonburg P. O., Rockingham County, Va., U.S., 1847 March 31 Item 4: J. P. Brock, at Walnut Springs Camp Occupation, opposite Monterey, to Amanda J. Brock, at Spartapolis P. O., Rockingham County, Va., U.S., 1847 April 24 Item 5: John P. Brock, at Walnut Springs, opposite Monterey, to Mr. and Mrs. Archibald Brock, at Spartapolis P. O., Rockingham County, Va., U.S., 1847 April 24 Item 6: J. P. Brock, at Walnut Springs, Camp Occupation, Monterey, to George E. Deneale, at Harrisonburg P. O., Rockingham County, Va., U.S.A., 1847 April 25 Item 7: John P. Brock, at Headquarters, Monterey, to Mr. and Mrs. A. Brock, at Spartapolis P. O., Rockingham County, Va., U.S.A., 1847 May 5 Item 8: J. P. Brock, at Camp Taylor, opposite Monterey, to Madison Brown, P. M., Spartapolis P. O., Rockingham County, Va., U.S.A., 1847 May 11 Item 9: John P. Brock, at Headquarters, Buena Vista, to Mr. and Mrs. Archibald Brock, at Spartapolis, Rockingham County, Va., U.S.A., 1847 July 20 Item 10: John P. Brock, at Buena Vista, to John G. Harris, at Harrisonburg P. O., Rockingham County, Va., U.S., 1847 July 22 Item 11: J. P. Brock, at Buena Vista, Mexico, to his mother, [Mrs. Archibald Brock]., 1847 September 4 Item 12: John P. Brock, at Headquarters, Infantry Brigade, Mexico, to his father, A. Brock., 1847 September 12 Item 13: J. P. Brock, at Headquarters, Mexico Brigade of Infantry, to Amanda J. Brock, at Spartapolis P. O., Rockingham County, Va., U.S.A., 1847 September 25 Item 14: John P. Brock, at Headquarters, Mexico Camp Buena Vista, to Archibald Brock, at Spartapolis P. O., Rockingham County, Va., U.S., 1847 October 2 Item 15: John P. Brock, at Headquarters, Mexico, Camp Buena Vista, to his parents, [Mr. and Mrs. Archibald Brock]., 1847 October 8 Item 16: John P. Brock, at Headquarters, Mexico, Camp Buena Vista, to his sister, [Amanda J. Brock]., 1847 October 15 Item 17: J. P. Brock, at Headquarters, Mexico, Buena Vista, to Mr. and Mrs. Archibald Brock, at Spartapolis P. O., Rockingham County, Va., U.S.A., 1847 October 31 Item 18: J. P. Brock, at Headquarters, Mexico, Camp Buena Vista, to ?, 1847 November 27 Item 19: J. P. Brock, at Camp Buena Vista, Mexico, to his parents, Mr. and Mrs. Archibald Brock., 1847 December 11 Item 20: J. P. Brock, at Headquarters, Virginia Regiment, Camp Buena Vista, to Mr. and Mrs. Archibald Brock, at Spartapolis P. O., Rockingham County, Va., U.S., 1848 January 6 Item 21: John P. Brock, at Headquarters, Virginia Regiment, Camp Buena Vista, to Mr. and Mrs. Archibald Brock, at Spartapolis P. O., Rockingham County, Va., U.S., 1848 February 3