Dr. Frederick Leavenworth - from A Genealogy of the Leavenworth Family
When quite young his parents moved to New Haven. His father resided for some years
in a house on the sourthward or water side of Water street, nearly opposite to the building known for
many years as the 'Pavillion Hotel'. Jesse L. [the father] was engaged in commerce, and owned the ferry to
East Haven, where Tomlinson's Bridge and Wharf now are, (Steamboat wharf). He once lost a sloop in
Hurlgate laden with flax seed. He was Lieutenant in a militia company, of whilch Benedick Arnold was Captain. Frederick remembered when the company left for the American army at Cambridge, in 1775, and followed them to the outskirts of the town. The father returned not long after. The mother, was a resolute and fearless woman. When the British troops landed at New Haven, her husband was absent. She refused to leave the house, which stood directly by the water; the British sailors landed there, pillage the house, took her silver buckles off her shoes, ripped open her feather beds and emptied them into the sea, while she took what reveng a woman could, by giving them 'a piece of her mind.'
She is said to have had, at times, a sharp tongue. Perhaps her husband found it so, for before Frederick was sventeen years of age, the father left the mother, taking with him a part of the children, and never returned. Frederick, being thus left to himself, and being desirous to assist his mother, shipped on board a vessel belonging to Capt. Helms, of New Haven. He made several voyages as mate and super-cargo, to the southern ports of the US, to the West India Islands, and to what was then called the 'Spanish Main'. On his last voyage he entered into the employment of a Scotch merchant named Anderson, in the Island of Trididad, where he remained some time. A portion of this time he was several miles inland, on a small river, where for months he did not see a white face. He located some government lands, in connection with a brother-in-law of Anderson's, and proposed to make a permanent settlement; but he was attacked by the yellow fever, and his constitution so much affected that he did not anticipate an ultimate recovery. In this condition he embarked for home, hoping for nothing more than to die among his friends. He was greatly benefitted, however, by the voyage, and before long entirely recovered.
He pursued the study of medicine, first with a Dr. Phelps, at or near Danville, VT, and afterwards with Dr. Isaac Baldwin, of Waterbury, his uncle by marriage, and a man of superior ability. He practiced a short time in connection with Dr. Baldwin. He then married and located in West Stockbridge, MA. At the end of about two years, Dr. Baldwin having decided to leave Waterbury, Dr. Leavenworth returned to take his place, and practiced his profession for several years. He was considered skillful, and had especial repute for treating the diseases of children, more than ordinary knowledge of (italics) materia medica (cancel italics) for those times, and much mechanical ingenuity. He was not fond, however, of the drudgery of practice, and probably through the influence of his brother Melines, who then resided in Georgia, he undertook various commercial adventures, dealing in horses, cotton, etc., or what was then known as 'Southern trade'. For some years his winters were spent in Georgia, and his summers with his family in CT.
In 1811, he engaged in manufacturing in Waterbury, and subsequently in mercantile business in connection therewith. He did not entirely relinquish his southern trade, and at the close of the war of 1812, met with a wevere loss by the fall in the price of cotton, in which he had invested somewhat largely. He was not, however, a man to be daunted by reverses, and he pursued his business with industry; but he had nothing more to do with southern trade. In 1827 he sold out his manufacturing interest, and thenceforward was engaged exclusively in mercantile business, mainly dealing in drugs and medicines. He, however, carried on farming somewhat extensively and successfully.
He held the office of post master in Waterbury for upwards of twenty years prior to his death. He was a man of extensive and varied knowledge, gained by reading and observation, and possessed of quick insight into men and things. He had a keen sarcastic wit, and a strong sense of humor. His opinions were deliberately formed, but were expressed decidedly, and held with much tenacity. Though very independent in his judgements and action, he was a man of quick sympathies, and prized the respect and esteem of his fellows. His religious opinions, very positively held, were not those of most of his friends and associates, and the writer of this sketch is of the opinion that a want of sympathy arising from this fact, was keenly felt by him, and probably resulted in his later years, in a certain studied disregard of some conventionalities, amounting to something like eccentricity.
For this notice of Dr. Frederick, I am again indebted to his grandson, the Hon. Frederick J. Kingsbury, or Waterbury.