 It is the type species of the genus Bartonella, and family Bartonellaceae.Alberto Leonardo Barton Thompson was the fourth of nine brothers.His father was a Uruguayan chemist, Ralph John Barton Wild born in Montevideo, Uruguay, 24 December 1834, and his mother Anastasia Francisca Augusta del Sagrado Corazón de Jesús Thompson, born in Buenos Aires, 25 December 1843, both of English descent.