Messemaeckers van de Graaff (ne van de Graaff), Hendrikus (Hendrik) (Henri) Alexander jul.1824-9.sep.1898 Netherlands, ? - Hilversum
organist, choral conductor, 16.nov.1855 appointed organist of the Hervormde Kerk in Vianen, 1856 as muziekdirekteur (musical director) residing in Vianen, 10.feb.1856 by royal decree he added Messemaeckers to his original surname van de Graaf, 25.nov.1892 he founded Zangvereeniging Polyhymnia in Hilversum (repetitien Schoollokaal aan de Schoolstraat), from 20.mar.1897 continued as 'Euterpe' at Hotel Wilhelmina in Hilversum, 9.mar.1895 also director of Zangvereeniging Apollo in Hilversum (repetitien Hof van Holland), 1895 as music teacher residing in Hilversum, 16.nov.1895 he gave a concert in honor of his 40th anniversary as organist of the Hervormde Kerk in Vianen, 1898 residing at Nassaulaan 3 in Hilversum ; 3.apr.1857 in Vianen he married Suzanna Maria Swaving (1837-9.dec.1913 Hilversum) ; they had at least 10 children: son (Vianen 22.jan.1858-), Catharina Louise (Vianen 9.jan.1859-), Christina Johanna Gijsberta (Vianen 2.mar.1860-), Christiaan (Hilversum 30.jun.1861-), Johanna Gijsberta (Vianen 14.jan.1863-), Henri Alexander (Vianen 2.feb.1872-), Christiaan (Vianen 16.mar.1865-2.apr.1882 Vianen), Henriette Louise (Vianen 23.jul.1869-25.nov.1949 Soest), child J A (Vianen 14.may.1873- 30.apr.1874 Vianen), Johannes Antonius (Vianen 23.apr.1875-25.feb.1918 Blaricum)