john is married to melisa she is his wife and he is her husband they have a daughter and son the son's name is harry and the daughter's name is alisa they live next to melisa's parents jack and christine is her mother jack is john's father-in-law and christine is his mother-in-law harry is jack's grandson and alisa is christine's graddaughter melisa has a sister and a brother her sister's name is mary and her brother's name is frank