Yes, I learned about that by watching one of my favorite shows, Oddities. One of the owners, Evan, is huge on anything from the Victorian era, and she and the shop have various dead-people's-hair items.Clipping hair and putting it in lockets was very common in Victorian times. Hair was also incorporated into jewelry - there's a category for mourning jewelry.
I'm still surprised the nurse was surprised!

It's so strange how things have progressed. Back when my daughter was born, our friends and relatives around the country had to wait for actual, lab-printed photographs to arrive via mail before they saw what she looked like. When my two grandsons were born, I saw their beautiful faces and my daughter still in the delivery room within moments of their births.
I have shopping bags FILLED with old mail I should go through (nothing important--I was steadfast in taking care of bills and other important things as soon as they arrived). And stacks of magazines I haven't even looked at yet. It's time to tackle some of these things!