Hi Martin,
Lover was only 3 years younger than Zozimus so I imagine he would have known of his songs. If you do a search under Henry Bennett you might get more links.You will find in many old songbooks that these 2 guys are given credit for writing the song. If you search for the book "Our Familiar Songs", which can be downloaded from some of the free book sites, the reference is on page 441.
While there is still a possibility these guys stole it from Zozimus, where is the evidence?
I discussed this with Barry Gleeson and he now believes it wsa not written by Zozimus. I'll check with him if he got any other links.
Hope to see you a the Goilin's 30th party
                                              Tony