David
Giovannoni

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Knowledge is like money: to be of value it must circulate,
and in circulating it can increase in quantity and, hopefully, in value.
– Louis L'Amour

There are several David Giovannonis in the world so take a moment to ensure this is the one you're looking for.

1988-present: Derwood, Maryland. 1980-1988: Silver Spring, Maryland. 1976-1980: Madison, Wisconsin. 1972-1976: Stockton, California. 1954-1972: Walnut Grove, California.