A miner.
geography
Fossils
There are lots of things underground: caves, worms, roots and seeds are four things.
a hoarder
The matter thrown out of a volcano while it is erupting is called lava, and it consists of melted rock matter. Before erupting, the lava moves underground towards the opening of the volcano. When it is underground like this, it is called magma.
There were people on the Underground Railroad that helped the slaves run away. Some of these people were Quakers, others weren't. They were called lots of things, from abolitionists to "conductors."
The earths crust is moved rather than pulled by things called convection currents. This is when heated rock from the earths core rises up and reaches the crust where it cools. It then sinks down again and carries on in a circle which moves the crust
scientist
no
What is a person called when they search for rare things?
William Still is often regarded as the primary influence of the Underground Railroad. He wrote a book on his participation called "The Underground Railroad". However, it was a somewhat more spontaneous thing, as such things always form in such conditions. The Society of Friends were probably the key "makers" of the Underground Railroad.
You can be called forgetful, or an amnesiac (someone who has amnesia, which is memory loss) Oblivious.