Hi there i am also looking for info on a Hugh Acheson my 5x great grandfather whom i think was married to a Mary they had a son Robert Acheson i dont know if he had any siblings Robert was born 1845 county Armagh Ireland ,Robert arrived in Melbourne australia in1864 aboard the ship Adriana which departed Liverpool England, Robert also marred Elizabeth Mills and they had 5 children Hugh Acheson 1882,John 1884,Annie Everlyn 1886,Sarah 1887 and Thomas 1892 i dont know if either of these are whom u where looking for i can not trace back any further as i can not find Hugh and Mary