Researching the surname Bulow

I'm trying to find any information concerning relatives of mine, My great grandfather was Ernest Albert Bulow and I believe he was
born in Flackenheide, Pommern, Prussia on the 08-02-1863. He married Wilhelmine Caroline Louisa Haenke on the 15-10-1883 at Flackenheide, Pommern, Prussia. Wilhelmine was born at Zug, Pommern, Prussia on the 20-09-1863.

I believe Ernest Albert Bulow's parents were Carl Bulow and Frederika Frohlic; Ernest and his wife Wilhelmine migrated to Australia with an infant son Herman (who died on the voyage) and his bother August Julius Bulow and sister Henrieta Louisa Bulow; they migrated on the Ship "DACCA" from Stettin (Szczecin) Poland, Pommern, Prussia and arrived at Brisbane Australia on the 14-12-1887. (I have also been told other brothers went to America ?)

Could anyone tell me any thing about the name Bulow or Haenke and how I'd find any further information on the Bulow, Haenke and Frohlic lines. Also could anyone tell me anything concerning the towns that I've meationed. Most of this information is from my grand fathers birth certificate and from immigration records here in Australia, so some of the towns may not be spelt right.

Regards,
(Mr) Kerry Bulow
Melbourne Australia