A syndicated comic strip
by cartoonist Arthur R. Momand
which ran in American
newspapers from 1913 to 1931. Originally, the title was to be "Keeping up with the Smiths", but Momand decided to change the name to "Joneses" just before first publication
, giving us the cliché
we still use today to describe neighborly competition
Several sources list this as the true source of the phrase. I've heard of at least three other possible sources, mostly wealthy 19th century individuals named "Jones", but they all seem aprocryphal in comparison to the evidence supporting this source.