Authors:

Ilk cowslip cup shall kep a tear.

Robert Burns, P. A. N., Robert Eldridge Aris WILLMOTT (1866). “The Poetical Works of Robert Burns. Edited by the Rev. Robert Aris Willmott. New Edition. With Numerous Additions. [The Preface Signed: P. A. N.]”, p.84
Ilk cowslip cup shall kep a tear.