I've indexed family death notices for an Augusta Zingler (75 yrs. old) in "Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950).
Some other interesting Zingler names include: Amalia, Arthur, Carl Heinrich Richard (32 yr, referencing August), Edward (referencing August), Ida (referencing August), Julius, Linda, Miss Martha (21 yr, referencing Schuenemann), Wilhelmina (née Krueger, referencing August), Ida Bandomir (née Zingler), Hedwig Kunde (née Zingler), Augusta Thuemler (née Zingler).
I haven't run across the other Zingler spelling variations listed in your posting.
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