Although loam is a combination of sand, silt and clay, adding sand to your clay soil, or vice versa, will not create loam. Doing so will result in something like cement.
According to Merriam-Webster, family values are values especially of a traditional or conservative kind which are held to promote the sound functioning of the family and to strengthen the fabric of society.
Family values first recorded 1966. Phrase in a family way pregnant is from 1796. Family circle is 1809; family man man devoted to wife and children, man inclined to lead a domestic life is 1856 (earlier it meant thief, 1788, from family in a slang sense of the fraternity of thieves).