Note M-7 — MEMOIR OF ZEBULON MONTGOMERY PIKE. BY ELLIOTT COUES.

John De Barth Walbach was a native of Germany, who was commissioned from Pennsylvania as a lieutenant of Light Dragoons Jan. 8th, 1799, and honorably discharged June 15th, 1800. He re-entered the service as a lieutenant of the 2d Artillerists and Engineers Feb. 16th, 1801, and was retained in the Artillerists April 1st, 1802; he became captain Jan. 31st, 1806, and was transferred to the Corps of Artillery May 12th, 1814. During the war he served in various capacities, with ranks of major and colonel, and was among those retained as captain of Artillery May 17th, 1815. He became major Apr. 25th, 1818, and was transferred to the 1st Artillery June 1st, 1821; promoted to be lieutenant-colonel May 30th, 1832, and to be colonel of the 4th Artillery March 19th, 1842. He was repeatedly brevetted for gallant, meritorious, and faithful services; his latest brevet being that of brigadier-general Nov. 11th, 1823. General Walbach died June 10th, 1857. An unpublished letter before me, from General Wilkinson to the Secretary of War, dated St. Louis, Nov. 26th, 1805, refers to Lieutenant Walbach in the following terms: "In every cavalry arrangement I must beg leave to call Walbach to your recollection, as the ablest horse officer in America, not only in the choice of animals, but in equipping, training, forming, and heading them to action."

Alexander Macomb was commander-in-chief of the army from May 29th, 1828, to his death, June 25th, 1841. He was brevetted major-general Sept. 11th, 1814, and received the thanks of Congress Nov. 3d, 1814, for distinguished and gallant conduct at Plattsburgh, N. Y. General Macomb entered the army as a cornet of Light Dragoons Jan. 10th, 1799; attained the rank of brigadier-general in 1814, and major-general in 1828.

Jonathan Williams, of Massachusetts, was appointed from Pennsylvania a major of the 2d Artillerists and Engineers Feb. 16th, 1801; he served as inspector of fortifications from Dec. 14th, 1801, to June 1st, 1802, and was retained as major of Engineers April 1st, 1802. He resigned June 20th, 1803; was made lieutenant-colonel and chief engineer Apr. 19th, 1805, and promoted to be colonel Feb. 23d, 1808. He resigned again July 31st, 1812, and died May 20th, 1815.