The owner of the dairy in PA was my grandfather, Edward Ernest Rieck, and it was in operation from @1888 until the 1950s. It has no relation to the Isaly Dairy. They were competitors. Edward E. Rieck started the Sealtest brand name, and Kraft took over some of the company. Edward E. Rieck was also the head of National Dairy Company. Rieck-McJunkin was in the early stages of the company @ 1920 or earlier. Riecks' Dairy later was called Riecks' Sealtest.