Indeed we are, Harold Hume Piffard, artist, late of Bedford Park, Chiswick, Lodon W4. Piffard was a Lancing College old boy, so he would have known the area well. Also he was associated with Aviators Finance Co. Ltd., together with George Arthur Wingfield of Wingfield, Blew & Kenward, solicitors of 74 Cheapside, London EC2. The company was incorporated in 1909. Wingfield took a lease of some 200 acres of land at New Salts Farm, comprising what is now the south-east corner of the present Shoreham Airfield, which became the first Shoreham Aerodrome. In 1912 Aviators Finance Co. Ltd. changed its name to The Brighton-Shoreham Aerodrome Ltd.. It is recorded as having been the owner of Shoreham Aerodrome so, presumably, either Wingfield assigned his lease to it or he surrendered the lease and it acquired the site. Wingfield remained involved with the company and the aerodrome but I've found no subsequent mention of Piffard. Perhaps when he finished his aeronautical experiments in the Shoreham area, he returned to London, his paints, brushes and easel and ceased his involvement with this early aspect of Sussex aviation history.
And as a postscript, I've always thought Wingfield to be a most appropriate name for an aerodrome owner!