
author
1873–1929
Drawn to the practical science of clean milk and better dairying, this early 20th-century writer helped explain how farms, creameries, and cities could improve the milk supply. His books reflect a time when agriculture and public health were becoming closely connected.

by Clarence Bronson Lane, (Ivan Comings) Ivan C. Weld
Born in 1873, Ivan Comings Weld wrote about dairying at a moment when milk production was being studied more systematically. Records connected with New Hampshire College of Agriculture and the Mechanic Arts and its Agricultural Experiment Station show him publishing practical works such as The Dairy Industry in New Hampshire and The Care of Composite Milk Samples in 1905.
His writing focused on everyday problems that mattered to farmers, dairy workers, and public officials: testing milk, handling cream, and improving quality. He also coauthored Competitive Exhibitions of Milk and Cream and A City Milk and Cream Contest as a Practical Method of Improving the Milk Supply, books that show his interest in using measurement and competition to raise standards.
Weld died in 1929. Surviving biographical records describe him not only as an educator in dairying, but also as someone who later worked in the wider milk industry, linking farm practice with the growing public concern for safe, reliable urban milk supplies.