 Writing in 1859 , the clergyman and antiquarian Harry <unk> Jones called it a " small , plain , single @-@ <unk> chapel " , and said that one of the small south windows was " a good specimen of its kind . " A 2006 guide to the churches of Anglesey says that the " <unk> ruin " of St Mary 's " has the distinction of probably being the most isolated church in Anglesey " . 
