After Ellis Island, I did go back into the website and eventually found my grandma Judy: under "Judith Anderson." (only one 's'! how unusual!) There were three passages listed for Judith, one in 1910, one in 1914, and one in 1920 (she was quite a traveler, it seems.) The 1920 trip is the one (the story goes) where she met my grandfather, who was also returning to the U.S. and now listed his residence as "Minneapolis" and wrote his last name with one 's.'
On Sunday, I showed my findings to my parents. My mother showed me this old picture of my grandmother, taken when she was still single, living in Connecticut, and working as a servant or a housekeeper. The interesting thing is (and I thought of Barb here), that she took the photo and made it into a postcard.
A woman of few words, her postcard reads simply: "Greetings from your sister Judith. Write soon." It is addressed to her little sister Johanna, who eventually travelled to the U.S. with her on that fateful 1920 voyage.