J.W. Weight & James Johnson, drapers, are listed in two Sydney Directories held by the State Library of Victoria. In Sand's Directories for 1857-1858 and 1861-1862 they were shown to be in business at 251 Pitt Street.
This period coincides exactly with the period in which John Weight and Co., drapers, were not listed in Sand's Directories. See parties record for 'Battle & Weight' for more information (linked via associations tab). Over the period 1851-1870, John Weight was the only draper of that surname listed in Sydney directories, other than this four-year interlude where J.W. Weight is listed as a principal of Weight & Johnston.
No further information about this business or its principals has been located during this survey (2005).