By this time, however, Weierstrass's father had moved jobs yet again, becoming director of a salt works in January 1840, and the family was now living in Westernkotten near Lippstadt on the Lippe River, west of Paderborn.
Sa pamamagitan ng mga oras na ito, gayunman, Weierstrass ng ama ay inilipat trabaho pa muli, at naging direktor ng isang asin gumagana sa Enero 1840, at ang pamilya na ngayon ay nakatira sa Westernkotten malapit Lippstadt sa Lippe River, kanluran ng Paderborn.