Hello Jerri
I am looking at the Bark(a)way families in England and came across your message. i wonder if your John Barkway is the person I have listed as John Rutherford Barkway b1919 d 8 May 1945. He was the son of Rutherford Becket Barkway and Lilian Rutherford was born in 1890 in Bootle LAN and was in turn the son of Alexander William Thom Barkway b 1868 in Scotland. His father was Alexander Bannerman Barkway who was the son of John Barkway who married Jane Milne in Aberdeen on 28 Nov 1827.
I don't have any information on a sister. Is this likely to be the same John Barkway?