Obituary from the Telegraph of 18 July 2015:
He was a scion of the Scots gentry family of that name of Cultoquhey. He was a gt gt gs of Alexina GRAHAM of Eskbank, sister of Robert GRAHAM who succ his 2nd cousin, 1st Baron LYNEDOCH (1748-1843, title ext on his death without issue) as 8th of Balgowan.
EXTRACT:
John Maxtone-Graham, who has died aged 85, was an American author of Scottish ancestry whose expertise on the golden age of ocean liners allowed him to make guest appearances on Cunard’s transatlantic crossings and even in an episode of The Simpsons. ... He claimed that the interest was genetic, noting that his ancestor Lord Lynedoch had, in 1815, sailed from Stockholm to St Petersburg in Savannah, a grand American steamer newly over from America. ... John Kurtz Maxtone-Graham was born on August 2 1929 at Orange, New Jersey. His father was a Scottish banker, his mother Ellen (née Taylor) was American. ... Maxtone-Grahame married Katrina Kanzler in 1955. The marriage was later dissolved. In 1981 he married, secondly, Mary Bergeron (on the liner Rotterdam as it sat in New York harbour). He is survived by two sons and two daughters from his first marriage.
http://www.telegraph.co.uk/news/obituaries/11744391/John-Maxtone-Graham-author-obituary.html