William and Susan were married on March 15, 1865. These photos of them were labeled on the back saying they were taken in 1865, so probably for their wedding. On a side note, my guess is that these are probably copies as I would expect photos of this age to be tin-type or something.
Also, with these 2 photos was another one. This one is of the entire Morey family from probably around 1882. They had 6 children total with one dying in 1874 and another dying in 1882. This picture shows 5 children, so it must be from around 1881 or 1882.
The children in the photo are:
Nellie Hannah (1866-1959)
Edward Henry (1870-1935)
Martha Cornelia (1876-1939)
Mary Etta (1877-1882)
Charlotte Amanda (1879-1949)
*Not in the photo - John F (1867-1874)