This paper deals with the observations of 72 of McClure's equatorial standard stars, made with the same photometer and DDO filters as were used for the E-region stars in Cousins' Paper I in order to standardize the observations. These observations were reduced in the natural system and later transformed into McClure's system. Zero-point ties between the equatorial and E-region stars were also needed to standardize the latter system. With the exception of C(38-41), our photometry agrees as well with McClure's standard system as his own observations do, but both show some small, apparently systematic, differences which are almost inevitable with a system like the DDO unless the response functions are very well matched. Comparisons with 17 of Dean's measurements of E-region stars show good agreement (~2 mmag) for the averaged zero-points, but there are small colour differences affecting C(35-38) and C(38-41) because of differences between the filters and the reduction procedures. This paper also deals with several problems in the DDO photometry that have implications for precision photometry in general.