Prufrock’s Source?

I read with great interest your article, “Letters to Emily” (feature, March 18).

Do you know the source of the surname Prufrock? I am relatively certain that its source is the family name of my great uncle, Harry Prufrock of St. Louis. I am told that Eliot’s sisters attended Mary Institute with his sister.

I might add that Eliot would be quite miffed by your reference to his “Missouri boyhood.” Those of St. Louis look East and are proud of that orientation.  They are “St. Louisians,” not “Missourians.”