Re discussion o of Jewish equivalent of "Willie". It is always dangerous
to make any assumptions regarding Americanization of Yiddish or other
Jewish names. Often, the new nickname is purely arbitrary.
For example, My father's name was Israel (1899-1967, arrived in US in
1941) but all who did not call him Mr. Schiffres (at a time when friends of
20 years' standing still called each other by their last names) called him
However, when he became part owner of an embroidery factory, "Srulik"
somehow became "Willie" in the ears of American-born employees and that
name stuck as long as he was in that business.
Searching HOLSTEIN or SPEIER-HOLSTEIN (Neuenbrunslar, Gensungen)
KAHN (Alsace, Belgium), SCHIFFRES/SHIFRES/SZYFRES (Grodno), HALPERN/GALPERN