I have not been able to look at these censuses so I am unsure of their information.
In the 1850 Census for Northampton/Southampton/Westhampton it lists the following Allen's:
Job age 76, Miller age 56, Benjamin age 51, DANIEL age 35, Elwood age 23, James Jr. age 46, Joseph age 54, Lydia age 16, Mary age 95, Samull age 12, Samuel J. age 36, and William B. age 43.
Daniel's 1850 census information is as follows:
Daniel35, laborer, NJ Caroline34, NJ Samuel10, NJ Mary E.5, NJ
Daniel's 1860 census information is as follows:
Daniel S.44, farm laborer, NJ Caroline A.38, NJ Samuel G.21, laborer, NJ Elmer8, NJ Elizabeth A.4, NJ
Samuel married Adeline Norcross/Frazier and they only had one child, George W. Allen b. February 14 1865 or 1870 (this is the only line that I have more information on besides what I am listing here, if you are related just let me know, I am more than willing to share)
I think Mary E. may have died at an early age.
Elmer later married a woman named Mary A. in 1872 and I know of three of their children; Franklin b. 1873, Catherine b. 1877 and Martha b.1878
Elizabeth married Joseph R. Haley 1874/01/13 and they had the following chilidren: Bertie b. Feb. 1879 (as of 1920 he hadn't married or had children) Henry b. May 1881 married a woman named Pearl S. who was born in 1882 Laura M. b. Mar. 1885 Horace J. b. 1894/01/29 married Nellie L. and they had the following children; Horace b. 1913, George R. b. 1915, John L. b. 1917