Dear Lila,
Did broad search at Ellisiland.org for persons from Bergedorf.
Noted: Ship S.S. America 19.2.1908 (Cuxhaven)
Burmeister, Joachim
" '' Franz
" ". Doris
Destination - Chicago Illinois!
This family has a br.in.l. Carl Schroeder (I think?)
I noticed also this burial data - Of course I don't know if related to your Burmeisters or the Burmeisters from Bergedorf.
http://www.aurcem.com/Sect%20HW/lot_hw-18.htm
Barbie-Lew
Thought interesting because Bergedorf is where my grandfather Edmund Sahs/Sass was from.