Mala Powers can be seen to be wearing a modern bra under her blouse when she hugs Shag in Lily's room. This type of undergarment was not patented until 1889 in Germany, and not mass-produced until the 1910s. In the American west circa 1880 women still wore corsets.
Lucy initially threatens Dan with Shag's gun, however she does not cock it until she points it at her father.