Lois A. Eckridge was a Starfleet ensign (serial number #GH 385-067), the daughter of Arlene C. and Malcolm Eckridge. She was born on stardate 44820.2, on Beta Aquilae II (Med file #DM-485-87), and attended Starfleet Academy on that world on stardate 44001.3. She reached the rank of ensign on stardate 47117.3, and served in the sciences division as a specialist (grade 2) emergency medical assistant.
In 2370, her personnel file was displayed on a viewscreen viewed by Deanna Troi. According to what she saw, Lois had an average efficiency rating of 9.3. The file listed some further data about her specific qualifications and equipment experience, with a protoplaser for example. (TNG: "Eye of the Beholder")