My Eggers line goes back to the Bruggerholz and Reesdorf areas in Schleswig-Holstein region, almost directly north of Hamburg, Germany. (Geographical coordinates are 54° 12' 00" N and 10° 05' 00" E). Do you know if your Hans Heinrich was from one of those smaller towns outside of Hamburg? I have two Hans Heinrich Eggers, a grandson and his grandfather, from that area. The younger one had a brother named Hans Kristian/Christian (and 4 other brothers named Hans something) and he left before the Franco-Prussian war (1870-71) to go up into Norway where he married a Norwegian and had my great grandmother. Hans Heinrich and Hans Christian's parents, Hans Christian Eggers and Maria Christina Griese, were married 2 November 1834 in Bruggerholz, Schlesvig-Holstein, Prussia. Like I mentioned, his father was a Hans Heinrich (born 13 Oct 1781 in Rumohr, Schlesvig-Holstein, Prussia) so there could have been multiple Hans Heinrich Eggers.