By the early 20th century, local farms around Millerstown began offering dairy products that gradually replaced the need for a family cow, aided by the fertile grazing lands of Pfoutz and Raccoon valleys, stored winter ice, and cool springs that preserved milk. Horse-drawn wagons and later motor vehicles delivered milk to customers' doors. Around 1905, William J. Hall became the first to deliver milk in Millerstown, later using a special milk wagon, and in 1939 John Kretzing Hall and his sons took over the Echo Glen route from Pleasant Home Farm, becoming the first in the area to offer pasteurized and homogenized milk and beginning ice cream production in 1947; milk processing ended in 1966, but Hall's Ice Cream continued. Jonathan and Samuel Black founded Black's Dairy in 1916 in Raccoon Valley, where a horse named Whiteface pulled delivery vehicles until 1935, when a truck replaced it, followed by a van in 1945, before the dairy closed in 1950. Charles and Eleanor Rumberger bought a Raccoon Valley farm in 1915 and soon started Rumberger's Dairy, hand-milking 25 cows and sending their children by horse-drawn buggy to deliver milk in Millerstown until the dairy ended in the late 1940s after the herd contracted tuberculosis. In 1926, James F. Beaver started Beaver's Dairy in Pfoutz Valley, shipping raw milk daily by automobile to Millerstown, Newport, and Thompsontown, but after a 1928 fire destroyed the dairy barn he transferred ownership to Nevin S. Bardell Sr., who renamed it Echo Glen Dairy. Echo Glen continued bottling and delivering raw milk and cream, made butter and chocolate milk, supplied homes, hotels, restaurants, and stores with specially designed milk trucks, and even gave milk free on Christmas Day before Bardell sold the equipment and route to John K. Hall and Sons in October 1939. James Orville and Elizabeth Beaver Rumbaugh also delivered milk in Pfoutz Valley from the 1920s through the early 1930s, washing bottles with a gasoline-powered brush machine, cooling milk with creek ice stored in sawdust, bottling it by hand, and leaving it on doorsteps while customers left empties, orders, and payments in bottles. As major grocery chains arrived in the mid-20th century, consolidation transformed the dairy business and the local family-owned dairy disappeared along with the family-owned small grocery store.