The Cranes

Crane is a more or less infamous name in the Wizarding world, the british/scandinavian family having quite the history. Centered around several types of businesses and politics, The Crane family tree is extremely 'impressive' in terms of their ability to keep things within their requirements. No Half-bloods, no Muggle-borns and that is final. The family members were known supports of Grindelwald as well as The Dark Lord during the first and second wizarding war, however only Lawrence Crane has been arrested and charged with anything in recent years.
Elena doesn't want anything to do with them.

The Joneses

The Joneses were a muggle family who more or less were relatively normal, mostly artists who would paint or sculpt or design whatever they wanted or needed. Light and airy people, they mourned when their daughter Amelia died but had no idea about the daughter left behind.
Elena is currently searching all of Britain for them.