I can tell you a few things about Jack. He was signed in October 1932 from Durham C (he being born in Co Durham), and made his City debut in 1933 v Villa. He played 5 games that season, Matt Busby being the usual right-half, and 9 games the following season. However, he began to replace Busby in 35-36 season, and the next season, when City won the title, he was ever-present.
He played 82 league games from 37 to 39, when war broke out. He played 37 league & Cup games for City in wartime. He was then our regular right-half when League football resumed after WW2, but after 16 consecutive games he was dropped after City only drew at home to Southampton on Nov 30 1946. He was transferred to Bournemouth in May 1947, playing for them for two seasons and playing in 52 League games in all (Div Three South), then retiring.
For City, he made 173 league & Cup games, scoring 8 goals
I hope this is of some use. I seem to remember an old glossy photo of him my brother had, and he seemed quite dark complexioned.
He was obviously a decent player, and had a Div One title medal to show for it.