Quoted from a near-contemporary magazine on the Vintage Speedway Forum:
"I have been sitting tight and reading with great interest the Controversy on "who started dirt track racing" As a Member of the Ilford club committee, 1926-28, I would like readers of this Magazine to know that as far back as June 1926, Sir Fredrick Wise, President of the club, made an application to the L.C.C. for a disused trotting track known as Parsloes park. This was when the Ilford club first though of making a dirt track. We did not unfortunately get the Parsloes track, so our next step was High Beech.
A.H.Finch"
No mention of Barking Park there!