1940s

May 8, 1940 Carl Lindner Sr., with his four children - Carl Jr., Robert, Richard and Dorothy - open first United Dairy Farmers store at 3955 Main Ave. (now Montgomery Road).
Early ‘40’s Robert and Richard enter World War II. Carl Sr., Carl Jr., and Dorothy run UDF.
1946 Robert and Richard return. UDF opens fourth store in St. Bernard.

1950s

1950 UDF opens ninth store in Deer Park. Dorothy moves bookkeeping office from boiler room in original plant (built as part of the first store) to a house next door.
1952 Carl Lindner Sr. dies, leaving Carl and his siblings to run the company.
1955 Carl Lindner Jr. creates American Financial Corp. and begins involvement in insurance and banking industries.
1958 UDF, now with 22 stores, expands plant, adds modern equipment to make and package ice cream and bottle milk.
1959 Lindner brothers buy into Thriftway Inc., the local grocery chain.

1960s

1961 Brothers buy out other partners in Thriftway. Richard Lindner devotes most of his time to Thriftway.
Mid ‘60s UDF moves into Hamilton, Middletown, Lebanon, Morrow, Nothern Kentucky, Dayton, Cleveland and other Ohio cities.
Mid ‘60s Carl Lindner concentrates on AFC and related activities. Robert Lindner sticks with UDF.
Late ‘60s UDF, now with about 120 stores, launches major remodeling program to expand size and scope of stores.

1970s and ‘80s

Late ‘70s 
and 1980s
Robert Lindner’s sons - Robert Jr., Jeff, Brad and David - take active roles in company.
1982 UDF, at the urging of sons Brad and Jeff, bring out Homemade Brand Premium Ice Cream. Robert Jr. leaves Provident Bank to join UDF.
1984 People magazine rates Homemade Brand Cookies ‘N Cream ice cream the No. 1 "exotic" flavor.
1985 Robert Lindner Jr. becomes president; Robert Lindner Sr. remains Chairman.
1986 Company expands Homemade Brand Ice Cream beyond UDF and Thriftway stores into states surrounding Ohio.
1987 Company creates MicroMalt and MicroShake, frozen treats that turn creamy after they are microwaved.
1989 Company adds reduced calorie ice cream and frozen yogurt to Homemade Brand Line.

1990s and 2000s

1990 UDF, with 209 stores, celebrates 50 years in business.
2000 UDF celebrates 60 years in business.
2001 UDF installs first Mobil branded store.