Thomas Rogers Kimball was an American architect in Omaha, Nebraska. An architect-in-chief of the Trans-Mississippi Exposition in Omaha in 1898, he served as national President of the American Institute of Architects from 1918 to 1920 and from 1919 to 1932 served on the Nebraska State Capitol Commission.

Thomas Lord Kimball was an American railroad executive. Born in Buxton, Maine, he worked various jobs before becoming an agent of the Pennsylvania Railroad Company in 1860. He was appointed to various positions in the company, before moving to Omaha, Nebraska, in 1871 to work for Union Pacific. From there, he climbed the ranks, eventually being promoted to the position of vice-president. Kimball retired in 1897 and died in 1899.