I found out about her first from the Citation Needed comedy show, but then later from the Futility Closet podcast, which pointed out that most of her clients ac

I found out about her first from the Citation Needed comedy show, but then later from the Futility Closet podcast, which pointed out that most of her clients actually needed the service, while some (private houses) were splurging on an extravagance. And also that new technology never immediately replaces old. In the early days, she was more reliable than the telegraph, which tended to break down. She had clients till the end of her life, though no one took over the business when she died.