You wont find Marlow, Marlow Brow or Marlow Bank, Bingley on the 1852 and 1858 maps, although these places do appear in the 1841 and 1851 Bingley census. However there is no Marlow in the census, even though it is a well established hamlet and farm.
Marley, Mareley Brow and Marley Bank can be found on the 1852 map, so Marlow and Marley are almost certainly the same place.
