Since only 2 authenticated cases of albinism in 1 of twins have ever been reported, the condition is of sufficient interest, I believe, to warrant the report of a third case.
Albinism, known also as congenital leukoderma, congenital achromia and congenital leukasmus, is a congenital absence of pigment in the skin, hair and eyes.
It is definitely hereditary and familial. Under the mendelian theory of heredity it is considered a recessive characteristic. For the sake of clarity it might be well to review briefly the work carried out by Abbé Gregor Mendel in 1865 and his theory deduced therefrom. He studied the effect of crossing different varieties of peas and evolved a law of heredity. Though similar experiments cannot be carried out with man, a careful analysis of pedigrees indicates that the same law holds good. Mendel took different varieties of the edible pea, one tall and the other short,
McCRACKIN RH. ALBINISMALBINISM AND UNIALBINISM IN TWIN AFRICAN NEGROES. Am J Dis Child. 1937;54(4):786–794. doi:10.1001/archpedi.1937.01980040090007