hidden-metaphor

Manx Genealogy Archive 2

Preston Family History

I've hit a dead end researching Charles Frederick Preston who supposedly married a Mina(?) Field and had a child John Henry Preston who was born around 1850 in Douglas.
Charles Preston supposedly served in India with 2nd Madras Regiment around 1850.
Is there a link between Charles Preston and Mary Ann Field?
Can anybody provide me with information?
Thank you for your help Jo.