In the example given,
<ref>Source: [[#S3]] </ref>
== Sources ==
* Source: <span id='S3'>S3</span>Title: Richard Mellen of Massachusetts: A Brief Genealogy of the Mellen Family. Sea Genes. pdf. Author: N. P. Maling Publication: seagenes.wordpress.com: 2011 Date: 6 Oct 2012
you could put
<ref>Source: [[#S3|Mellen]] </ref>
== Sources ==
* Source: <span id='S3'>Mellen: </span>Title: Richard Mellen of Massachusetts: A Brief Genealogy of the Mellen Family. Sea Genes. pdf. Author: N. P. Maling Publication: seagenes.wordpress.com: 2011 Date: 6 Oct 2012
to remove the visible S3 codes. The footnote would appear as
1. Source: Mellen
and the source would appear as
* Source: Mellen: Title: etc
You could also swap out the invisible S3 codes if you like.