Hey Roger,
I have been in and out of my genealogy pursuits in the past 10 years, but have been doing quite a bit lately. If all the Winterraths are related, we are indeed a small band. My mother's father was Arthur Romer. Arthur's mother was Anna Winterrath, Marie's (Mary's) sister.
I know next to nothing about this part of my family, except for what I have found on Ancestry and internet, plus some archival information from the Met in NY, including photos. I did have a couple of photos of Marie from my mom.
Was your Lillian Marie's daughter?