Using search engines, such as Google.com can lead to some potentially useful resources, but make sure to use reputable resources, and evaluate findings.
The Gardner Museum has its own website. Use this if you need to reference any of the material you read while at the museum - click on the "Collection" tab at the top of the page to find information on what they display.
Don't forget, the Davis Museum has its own website. Use this if you need to reference any of the material you read while at the museum.