from Thom's directory of 1894, North circular road is listed as several section with reused street numbers. The section from Avondale road to Berkeley road has the following listed at number 39 :
Fox Brothers, grocery, &c.
Mr. James Fox
they are listed in a block of shops and businesses marked Thomond Terrace, and between Blaquiere bridge and Berkeley road, and near to the jct with Phibsborough road.
In the 1904 edition the address is listed as William John Gleeson, family grocer.
Shane