>>24537520
I think you're generally right, but Pharr cites Longfellow's Evangeline ("mediocre though it be") as an example of an attempt at actual length-based hexameter in English.

>THIS is the forest primeval. The murmuring vines and the hemlocks,
>Bearded with moss, and in garments green, indistinct in the twilight,
>Stand like Druids of eld, with voices sad and prophetic,
>Stand like harpers hoar, with beards that rest on their bosoms.
>Loud from its rocky caverns, the deep-voiced neighboring ocean
>Speaks, and in accents disconsolate answers the wail of the forest.

It's amusing how successful an accomplishment this is, given that we don't ordinarily think of English in those terms at all.