Odair married Annemarie Martha EGGERT daughter of Max Johann EGGERT and Anne Catharine EILERTS.
They had the following children:
2 F i Ellen Heidi COSTA + 3 F ii Erika Heike COSTA + 4 F iii Evany Hanne COSTA 5 F iv Evelyn Helga COSTA Evelyn married Roberto VALDREZ Junior. + 6 M v Edgar Eggert COSTA