Boer War Medal

I recently received a Queens South Africa Medal awarded to PTE S.Yeardley Cape Medical Staff Corps. I decided to put up a post now rather than wait until the search is resolved as the medal is not one I usually deal with and putting Yeardley's name out on the Internet might pull in some more clues.
Through the British Medal Forum I was provided a link to the Boer War nominal roll that has Yeardley's name although spelt Yardley. I also found the original of this list. Unfortunately neither gave me a clue as to where Yeardley came from. I took a punt and searched the AIF data base and came up with this hit. I got a bit excited when I saw he was an MM winner but nothing linked the S. Yeardley of the Boer War to the S. Yeardley of WWI. So off I went to the Australian Archives and found this record. On the first page was a clue that they might be the same fellow. In answer to the question about previous military service there is the comment; '12 months 21th Field Hospital Anglo Boer War'. This is by no means conclusive but a very strong link.
Making the assumption that they are the same fellow I started searching the NSW BDM as WWI Yeardley was discharged in 2 MD (NSW). Given the clues from the service record I located some details for Samuel Yeardley who married Doris Parr in 1924 and died in 1961. Doris was born in 1891 and died in 1978.
Bill posted all this on Australian Surname Group and they have found some great information. I'm sure that it wont be long until a relative of Yeardley is found and in the mean time here are some pictures of his QSA.