Thanks for your comments.  I have had 8 successful nominations to DYK; in fact every nomination I made succeeded.  This made me suspect that the threshold for success might be rather low (unlike GA and FA).  It's good for the morale to be on the main page but I wonder how many visitors to the site actually bother to scroll down and read the DYK section rather than going for what they really want.  As regards the Edmund Knowles Muspratt article I cannot find anything worthy of a DYK - but if you (or anyone else) can spot something suitable please feel free to submit it.