As for the 2 black and white ducks, it looks like you have mixes.
They look like they have the upright stance of a runner as well as the way the bill is attached to the head indicates runner genetics.
Anconas have a more horizontal stance though they can seem "runnerish" as they are a breed that was derived from runners.
But there is no runner color that is recognized as ancona markings. Which is what makes me think they are a runner/ancona cross. Color looks more ancona-like. Body and stance looks more runner-like