1979, John H. White, A History of the American Locomotive[1], →ISBN, page 311:
Whereas nearly all of about 20 pre-1860 locomotives existing in this country have been reframed, reboilered, or in other respects lost their identity through reconstruction […]
2012, Richard Hardy, A Life on the Lines: A Railwayman's Album[2], →ISBN:
She lasted until 1949 and was never reboilered to class J3.
2013, Ambrose Greenway, Cross Channel and Short Sea Ferries: An Illustrated History[3], →ISBN, page 29:
Her engines gave constant trouble and she was reboilered with higher-pressure units in 1878.