1837 Middlesex Manufacturing Company recruits British workers from Gloucestershire. British immigrant James B. Francis becomes Chief Engineer of the Proprietors of Locks and Canals. 1837 Market House is built 1838-39 Luther Lawrence, Mayor 1839 Lowell Corporation Hospital opens. 1839 Massachusetts Mills incorporated. 1839 April 17, Mayor Luther Lawrence dies by a fall into a wheel pit.
Irish workers begin to find employment in the textile mills.
1841 Louis Bergeron family become the first recorded French-Canadian family to settle in Lowell. Hugh Cummiskey, Irish immigrant, is elected to the Common Council. 1843 Establishment of Dr. J. C. Ayer's laboratory. 1843 April 1, Dr. William Graves dies. 1843 June 19, President Tyler's visit 1843 The Missionary Association is formed 1844 City paves streets at public expense 1844 Lowell Female Labor Reform Association is formed.