Information about Zonnenberg (and similar) in Brest:
Rabbi Shimon Meller describes R. Boruch Zonnenberg, aka R. Butche the Shochet in The Brisker Rav (WorldCat entry; searchable Preview, courtesy of Google Books), page 348:
R. Butche the Shochet was a Kotzker Chassid, full of love for his countryman. He was especially concerned with education. After the end of World War I he took upon himself, at the urging of the rav, the project of rebuilding the city's Talmud Torah. The impressive new building contained thirty-eight classrooms. His custom was to separate twenty percent of his salary for his personal use and to spend the rest on the needs of the Talmud Torah. Many of the talmidim recieved monetary support from him personally.
R. Butch was a Chassid in every sense of the word; he was an expert shochet, and he performed circumcisions as well – taking no money for this holy task. He preformed many other services on behalf of the community, especially after the war. The majority of his time and energy was dedicated to the building of the Talmud Torah. R. Butche would approach wealthy men and when they would ask: Who are you?" he would respond, "I am a needy Jew; I am ready to accept anything, a door, a window, a plank – anything will be accepted. Just help us to complete the building of the Talmud Torah."
... R. Butche passed away at the age of sixty-six.
On page 215, Moshe Zonenberg is identified as son of R. Butche the Shochet.
Ellis Island reports a Chaie Sonneberg, born in Brest Litovsk, arrived in New York at age 16 on the Noordam, arrival 30 January 1906. Her profession: servant. Her contact was her father, in New York City. (Courtesy of FamilySearch.)
Ellis Island reports a Jsrael (Israel?) Sonneberg, from Brest Litovsk, arrived in New York at age 40 on the Grosser Kurfurst, arrival 18 November 1903. His profession: wigmaker (?). (Courtesy of FamilySearch.)
