Dave Lennox owned and operated his own machine shop in downtown Marshalltown, Iowa. In 1893, he was approached by John Stine,
a local stone mason, and asked to make a "better" trowel. Apparently, Stine was dissatisfied with the quality of the trowels
he had used previously. Lennox fashioned the first Marshalltown trowel implementing several of Stine's suggestions. But, due to
other interests, he turned the trowel-making over to two of his apprentices, E.L. and J.C. Williams.
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