John O'Farrell, M.D., Piqua. Among the leading men of Piqua, Dr. O'Farrell is prominent; he is the son and successor of Dr. John O'Farrell, Sr., one of the first physicians of Piqua, having located here in 1819 ; the subject of our sketch was born in 1 824, graduated from the Louisville Medical College in 1843, and began practice in Piqua the same year; in 1848, he went to California, whence he was summoned to return by the decease of his father, which occurred in 1850 ; from 1851 to 1862, he was engaged regularly in practice here then entered the army, in which he served about two years, being Major of the 11th O. V. C., since which time he has been engaged in practice most of the time his attention being diverted by the building of the woolen-mill in 1869, and of the Lock Flouring Mill in 1872, in each of which enterprises the Doctor was a leading partner; also rebuilt the Car and Agricultural Works in the fall of 1872, the former buildings having been burned that summer. Dr. O'Farrell has been identified with and a prime mover in securing several important industries in Piqua, and has been not only a leading physician, but also intimately identified with the manufacturing interest and measures of public benefit. He was married in 1843, to Miss Sarah, daughter of John McCorkle her decease occurred in 1846; they had one child, who died in his youth; in 1853, he was united in marriage with Miss Jane Kirk; her death occurred in 1869; they had four children, two of whom survive; Dr. Robert O'Farrell, of Denver, Colo., and John, now 12 years of age; His marriage with Mrs. Addie L. Thompson was celebrated in 1874; she is a daughter of James Edwards; she had one child by her former marriage; Nelly M. Thompson; from this latter union have been born two children-Kate and Mary. His residence and professional office in located at the corner of Maim and North Streets, and is an elegant property and pleasant home.