Sharp collected "Seed of Love" from a Somerset gardener named John England in 1903. His photo is HERE (The "Seed of Love" link there could not be connected; Click here, instead). Found two more articles in part on Sharp (both are at Musical Traditions).

Nicely Out of Tune 1 - Part 1: from quixotic patriotism to post-war utopianism

England, whose England?: Class, gender and national identity in the 20th century folklore revival (esp. "3. The English Folk Revival: origins and consequences -- Pre-1914")
Hrothgar, the author says, "It was from Marson's gardener, appropriately named John England, that Sharp noted down The Seeds of Love the first of over 300 Somerset folk songs he collected and published."(underline added).

~Masato