refs
edit- 1 x engine per day in 1852 "burdon steam engine works" -npc
- change of ownership 1863 -npc
- Seawanhaka 1866
- marble factory engine 1867 -npc
- water pumping engine for brooklyn 1868[1]
- water pump done 1870[2]
- 1871 4 x steamboats (l&f) engines -npc
- 1871 various, ad[3]
- exhibition engines 1872[4]
- h&w dissolved 1873, proprietors' names, new firm Hubbard & Aller -npc
- recievership 1877, proprietor William Burdon, Pearl and Front Sts., Brooklyn.
- 1872 strike prevents finish of River Belle engine
- day star 1873[5]
- 50 engines at a time
- crystal wave 1875[6]
- hubbard mays whittaker formed jul 1863[7] mays out jan 65[8]
- water pump proposal 1875, hubbard & aller different firm?[9]