Notes:

We get his wife, Amanda's, surname of "Walker" from her death certificate, which also lists her as a widow.
We get "William Walker" from information on Amanda's Find a Grave entry. We can now add their marriage information which also confirms the groom as William Walker. So far, no further information on him.

Died:
In the 1900 US census, Amanda is listed as a widow.

William married Amanda Meyer on 18 Apr 1893 in Boalsburg, Centre County, PA. Amanda (daughter of Henry Meyer and Catharine Hoffer) was born on 27 Jun 1849 in Centre County, PA; died on 11 Sep 1910 in Harris Township, Centre County, PA; was buried on 14 Sep 1910 in Boalsburg Cemetery, Boalsburg, Centre County, PA. [Group Sheet] [Family Chart]

Notes:

Married:
Marriage records - United Church of Christ, Boalsburg, Centre County, PA