The Duke's Children

The London Chapman & Hall 1880 three-decker is the true first; the American edition (Harper & Brothers, New York, 1880, per the census note) followed and is secondary. Important: the 1880 text is Trollope's own contractual abridgement (he cut roughly a quarter, about 65,000 words); the restored full-length text ('The Duke's Children Complete') did not appear until 2015, so the 1880 three-decker remains the true first of the work as published in his lifetime.