Thank you everyone...
Davids wife was Janet Bishop they married in 1822 Saline, fife. The children are Alexander, Helen, Robert, Grace and David - my ancestor is from the son Robert, who married Mary Reid,who had a son David, who had my Grandfather William bishop Wishart (Bishop being Janet Bishops maiden name). . All deaths reported between these years 1734-41in fife do no match for ages or years, except David wishart aged 52 .The family names seem to be Alexander, Robert or David, and as there is no mention of parents on the marriage banns I have not much else to go on except Alexander and Agnew Rattre. I have discounted Agnes Meldrum as the dates do not add up.