Change a group of cells to include First Letter of First Name + Last Name

Hello, I was able to get help with an issue similar to this last time so I figured I would post here. This is an example of what I want to do:

A group of cells with a full name (example, Tom Henry - Cell A1) I want to convert that to T. Henry in Cell B1.

I want to use the formula for this because I will want to change a large group of cells from the full name to first initial of first name + full last name.

Thanks!