Museum officials want to create another tributary mural to the porters, this one, 33 feet by 27 feet on the museum's north entrance. This would be among the first noticeable changes in the historic Pullman neighborhood since President Barack Obama named it a national monument in February. The project hinges on a fundraiser that aims to collect $9,500 by June 9. If the campaign meets its goal, the mural could be completed within two months.