Ancestry has the NSW 1913 ER. -

Using a name from the Sands posting for Dudley St Roseville
NSW ER 1913, GORDON, polling at Roseville
John CANTOR, Dudley Street, salesman.
Actually, the first surname listed for the 1913 ER polling at Roseville is for four people with surname ABBOTT all in Dudley Street.
I wonder if when Ancestry uploaded the ER for Roseville 1913, err perhaps they have missed INDEXING it

I found Cantor the 'long way' ... I searched for SMITH, Gordon NSW and restricted it to EXACT 1913. Then I fiddled with the polling place option and let fingers do the walking etc...
ADD, I have 1913 on two CDs

sorry for not considering checking there earlier.
JM