1850 US Census, East Deer Township, Allegheny County, PA:
#81-81
Ewer, Jane 54 PA [Jane Elliott Ewer, mother]
Ewer, Eliza 24 PA [daughter of John and Jane Ewer]
Ewer, Lilly A. 17 PA [daughter of John and Jane Ewer]
Ewer, Rachel 15 PA [daughter of John and Jane Ewer].
#94-94
Ewer, Samuel 26 PA farmer
Harriet N. 25 PA
Frew, James 23 PA laborer.

Account Book 2, page 200, Register of Wills, Allegheny County, PA provides an accounting of the estate of John Ewer with Archibald Yourd and Jane Yourd, administrators.
[not my line, no further information]