Well now we know the two names appear in 1701, I can only proffer William Drummond of Hawthornden 1585-1649. His translation of St Ambrose`s 4th century hymn appears in RCH (No 4): O Trinity, O... more
Julian's Hymnology seems to confirm that it is William Drummond that we are looking at. There is a surprisingly wide variety of hymnodists and psalmodists represented in The Divine Companion. I... more
It seems Drummond mostly wrote on non-spiritual themes, but some poems with Christian content are in his Urania collection. Maybe you could find your Playford text in this, or via the indexes of... more
Given that you are looking at Playford I assumed, possibly wrongly, that George Hay Drummond was not a possibility. I mention him here purely for completeness.