In the 1900 census of PA- Eunice Bolem said she was born May 1854 - 46 in this census.
Not found in the births in England in 1854/1855- however in the 1861 census of West Bromwich, Staffordshire- there is a Eunice Lunn age 2- erased and Richard entered instead. Hmm! Parents were Richard, age 48,and Mary Lunn age 44
In the 1871 census of West Bromwich, Richard age 52, Mary age 59 and "Unice" age 17.
Other children born to Richard and Mary were Mary b. 1839 Susannah b. 1841 Lydia b. 1844 Thomas b. 1846 Eliza Ann b. 1847 Matthew b. 1850/51 William b. 1852 Eunice b. 1854 (according to her records)
There was a Richard Lunn born at this time in West Bromwich, but his parents were Richard and Ann. He died in 1875.
I couldn't find any marriage for a Morrow and Eunice Lunn in England.
However have you tried to get marriage and death certificates for Henry and Eunice?