1881 Census (RG11 4340 37 37)
Abraham (41), cloth manufacturer and Jane (39) Moon + children Charles (14), George R (11), Mary L (

,
James W (5), Florence (2), all born Guiseley, address Upcroft House, Carlton Lane, Guiseley (Registration District - Wharfedale).
FreeBMD has the birth registration of a
James Walter Moon, Wharfedale, Sep 1875, 9a 157.
The above Abraham is a possibility for the Abraham Moon, born 1841, brother of Isaac Moon, born 1846 - sons of Abraham and Elizabeth identified in the 1851 Census?