↑ England & Wales, Civil Registration Birth Index, 1837-1915, ancestry.com: Henry Ulick Lascelles, Jul-Aug-Sep 1846, Otley, Yorkshire West Riding, vol. 23 p. 523.
↑ West Yorkshire, England, Church of England Births and Baptisms, 1813-1910, ancestry.com: Henry Ulick Lascelles, born 21 Aug 1846, baptised 16 Oct 1846, Thorner, St Peter, Yorkshire, England. Parents Henry Thynne Lascelles & Joan Lascelles.
↑ England & Wales, Civil Registration Marriage Index, 1837-1915, ancestry.com: Henry Ulick Lascelles & Florence Katherine Bridgeman, Oct-Nov-Dec 1881, St George Hanover Square, London, 1a 755.
↑ England & Wales, Civil Registration Death Index, 1916-2007, ancestry.com: Earl of Harewood Henry U Lascelles, age 83, Dec 1929, Wetherby, Yorkshire West Riding, 9a 143.
It may be possible to confirm family relationships with Henry by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
Y-chromosome DNA test-takers in his direct paternal line on WikiTree: