Date: 1796

"E'en they th' impressive dart of love can feel, / Whose stubborn souls are sheath'd in triple steel."

— Falconer, William (bap. 1732, d. 1770)

Date: 1805

"Touched with my care, my tyrant may prove kind, / Nor let that form conceal an iron mind."

— Ossian; Macpherson, James (1736-1796)

Date: 1805

"The Saxon saw, advanced, nor looked behind, / Fate hurried on, and courage steel'd his mind."

— Ossian; Macpherson, James (1736-1796)

Date: 1805

"When Courage, through the Scottish ranks confessed, / With his immortal steel incased each breast."

— Ossian; Macpherson, James (1736-1796)

Date: 1806

"And now, cold horror trembles o'er my soul, / When thou in blank uncertainty array'd, / With iron-hearted deaf control / Throw'st all around thy awful, dubious shade"

— Mickle, William Julius [formerly William Meikle] (1734-1788)

Date: 1807

"No, no; fear, hatred, envy, all have steeled / The heart of England's Queen."

— Graham, James (1765-1811)

Date: 1807

"Miscreant! thy words, far from appalling me / With the full marshalled horrors of this day, / They steel my heart"

— Graham, James (1765-1811)

Date: [1805?] 1810, 1812, 1818

"Where bloody Butler's iron-hearted crew, / Doomed to the flames the weak submitting few"

— Wilson, Alexander (1766-1813)

Date: 1859

"(For sure thy sire had not a heart of steel)"

— Skinner, Rev. John (1721-1807)

Date: 1891

"Yet in his stern creed lay a tender heart, / The husk o'erlaid a wealth of human kindness / And love, that fain their wisdom would impart / To purge the young soul of its earthly blindness"

— Smith, Walter Chalmers (1824-1908)