I am quite certain they migrated to Mathon from Gloucestershire--they had an early connection with the Pulton family of Tewkesbury (an early family of drapers who left a mansion house there of which I saw a picture some years ago). I also noted a very early entry I believe at Oxford in Oxfordienses--the year 1444 I seem to recall.
If you are tracing all Mathon connections--see my website at www.geocities.com/sjkelsey2000
. I am connected with Woodyatt, Jauncey, Berrow and Wight as well as Vobe--all of which have early connections there.