Alexander Clark was born in 1868. Alexander Clark Lamb ... He passed away in 1945. 
Possible immigration: "Australia, South Australia, Immigrants Ship Papers, 1849-1940," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QLF6-FCMD : 14 March 2018), Alexander Lamb, ; citing Emigration, Australia, name citing , Attorney General of South Australia, Adelaide.
↑ First-hand information as remembered by Robert Pike, Tuesday, March 24, 2015. Replace this citation if there is another source.
Find A Grave, database and images (https://www.findagrave.com : accessed 25 January 2019), memorial page for Alexander Clark “John” Lamb (unknown–25 Sep 1945), Find A Grave Memorial no. 158299405, citing Cheltenham Cemetery, Cheltenham, Charles Sturt City, South Australia, Australia ; Maintained by Christina (contributor 46772328). Find A Grave: Memorial #158299405