A Friedrich Sell, a shoemaker, received a letter in Milwaukee in 1865 postmarked from Treptow. The letter was held at the Milwaukee post office pending being claimed or returned to Treptow.
There are over 100 entries or references to the surname Sell in the legendary collection called "Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950). Any "Sell" researcher should include looking at the spelling "Zell" in any index.
Gary Rebholz, compiler/editor
Indexing Milwaukee's German newspapers continuously since 2007... helping family researchers find their ancestors among Milwaukee's 99%.