20-mule teams were first used by
Francis Marion Smith to transport borax from the desert. Smith subsequently acquired Coleman's holdings in 1890 and consolidated them with his own to form the
Pacific Coast Borax Company. After the 20-mule teams were replaced by a new rail spur, the name
20 Mule Team Borax was established and aggressively promoted by Pacific Coast Borax to increase sales.
Stephen Mather, son of J. W. Mather and administrator of the company's New York office, persuaded Smith to add the name
20 Mule Team Borax to accompany the sketch of the mule team already on the box. The 20-mule team symbol was first used in 1891 and
registered in 1894. In 1988, just over 20 years after the acquisition of
U.S. Borax by
Rio Tinto, the Boraxo, Borateem and 20-Mule Team
product lines were sold to
Dial Corporation by U.S. Borax. Dial is now an American consumer products unit of
Henkel. ==References==