Okay, let’s tackle this. So Maria Clara has been working as a secretary since 1911, which is an incredibly long time. Her skills are quite diverse, but her experience is mostly in operations and administration. She's not in a high-demand field like tech or finance, and her location is in Brazil, which might affect her earning potential. Considering her longevity in the same role, I'd estimate her hourly rate to be on the lower side. Maybe around $50 per hour, which is a rough estimate considering her skills and experience. Some administrative professionals in Brazil might charge higher rates, but Maria Clara's unique situation and skills don't seem to warrant a higher rate.