GREGG, Andrew, senator, born in Carlisle, Pennsylvania, 10 June, 1755; died in Bellefonte, Pennsylvania, 20 May, 1835. His parents came from Ireland to New Hampshire, but removed to Delaware in 1732, and to Pennsylvania in 1733. The son was educated in Carlisle, and in Newark, Delaware, where he served in the militia during the Revolution. From 1779 till 1783 he was a tutor in the College of Philadelphia (now University of Pennsylvania). He was a merchant at Middletown, Pennsylvania, in 1783-'9, and then became a farmer in the wilderness of Penn's valley. He was elected a member of congress from Pennsylvania, and served from 24 October, 1791, till 3 March, 1807, and was a United States senator from the same state, serving from 26 October, 1807, till 3 March, 1813, for a part of which time he was president pro tempore of the senate. In 1814 he removed to Bellefonte, was appointed secretary of state for Pennsylvania in 1816, and in 1823 was an unsuccessful candidate for governor. He was a fine classical scholar, and a man of vigorous constitution. He left an unfinished sketch of his family history, which has been published in Dr. William H. Egle's "Pennsylvania ;Genealogies" (Harrisburg, 1886).--Andrew's grandson, John Irvin, soldier, born in Bellefonte, Pennsylvania, 19 July, 1826, was the son of Andrew Gregg, an iron-master. He volunteered for the Mexican war as a private in December, 1846, became 1st lieutenant of the 11th regular infantry in February, 1847, and was appointed captain on 5 September, 1847. After serving through the war, he was disbanded, 14 August, 1848. He then engaged in the iron business in Centre County, Pennsylvania He became a captain of Pennsylvania reserves in the early part of the civil war, and was made captain, 6th United States cavalry, in May, 1861. He became colonel, 16th Pennsylvania cavalry, in October, 1862, and commanded a cavalry brigade in the Army of the Potomac, from April, 1863 till April, 1865. He participated in numerous battles, including Deep Bottom, where he was severely wounded. For gallant and meritorious services during the war he was brevetted major general of volunteers, and brigadier-general United States army at its close. After the war he was in-specter-general of freedmen in Louisiana, and under the establishment of 28 July, 1868, became colonel of the 8th cavalry. He was with his regi-meat on the Pacific coast till retired for disability incurred in line of duty, 2 April, 1879.--Another grandson, David McMurtrie, son of Matthew D. Gregg, soldier, born in Huntingdon, Pennsylvania, 10 April, 1833. He was graduated at the United States military academy in 1855, and was assigned to the dragoons, receiving his full appointment as 2d lieutenant in September following. Afterward he served a short time in Jefferson barracks, Maine, .and was then ordered to New Mexico and California, and served in the campaigns of 1858-'60 :against the Indians. In March, 1861, he was appointed 1st lieutenant, and in May following captain in the 6th cavalry. In January he was appointed colonel of the 8th Pennsylvania cavalry, and was engaged at the battles of Fair Oaks, the seven days' fight, and otherwise during the Virginia peninsular campaign in 1862. He became brigadier-general of volunteers on 29 November, commanded a division of cavalry in the Army of the Potomac from December, 1862, till June, 1863, and was engaged at Beverly Ford, Aldie, Gettysburg, Rapidan Station, and New Hope Church. He commanded the 2d cavalry division. 6 April, 1864, to 3 February, 1865, in the Richmond campaign, and the cavalry of the Army of the Potomac from 1 August, 1864 (when he was brevetted major general of volunteers), till his resignation, 3 February, 1865. He was appointed United States consul at Prague, Bohemia, in 1874, and in 1886 became commander of the Pennsylvania order of the loyal legion.