Company Names, addresses, dates:
  Leonard Henry, Duke of Gloucester St, Williamsburg VA (1895-1907) ^1,2
  Williamsburg Drug Co, Duke of Gloucester St, Williamsburg VA (1907-ca.1940s) ^2,3,4
  Williamsburg Drug Co, (other addresses), Williamsburg VA (ca.1940s-present) ⁴

Notes:
As of August 2023, this company still exists. It got it's start in 1895 on Duke of Gloucester Street, in Colonial Williamsburg.¹

I believe it started as the drug store of Dr. Leonard Henry Sr. (1821-1904)⁵ and/or his son, Leonard Henry Jr. (1860-19xx)⁶. Leonard Sr. was a physician, and Leonard Jr. was a druggist.
After Leonard Jr. passed away in 1907, the store was purchased by W.A. Bozarth, with C.C. Hall as the GM and druggist, and the name of the new store was the Williamsburg Drug Co.²

The last reference I could find to the store's address being on Duke of Gloucester Street was in 1938³, and the next reference I could find was from 1952⁴, when it the address given was "next to the post office and bank". I don't know where that was.

Today (August 2023), the company has 2 locations, one at 1310 Jamestown Rd., and the other at 240 McLaws Cir #147.


Bottles:

This is a clear, 7" machine-made bottle with a plastic cap. It has a label from 1936 that says: label : WILLIAMSBURG DRUG CO. / WILLIAMSBURG, VA. / ... 11/10/36 label (top left): SAVE with SAFETY at your Rexall DRUG STORE