3 Wynnefield Heights, Pennsylvania 19 Wynnefield, Pennsylvania 18 Wynnewood, Pennsylvania 17 Wyoming 17 Wyoming Avenue 1 Wyoming Valley 2 Wythburn, England 5 Xenia, Ohio 3 Xerxes I, King of Persia, 519-465 or 4 B.C. 2 Xylophones 1 Yale & Towne Mfg. Co. (Firm) 1 Yale College (1718-1887). Linonian Society 2 Yale Lock Manufacturing Company 1 Yale University 5 Yard ornaments 1 Yardmen 36 Yards 5 Yarmouth, Nova Scotia 13 Yarn 6 Yarnall & Cooper, Architects 1 Yarnell & Goforth, Architects 12 Yates, David G. 2 Yawning 3 Yeast 1 Yeaton & Harris Manufacturing Co. 8 Yellow fever 1 Yellow Fever Epidemic of 1793 3 Yellowstone Lake 39 Yellowstone National Park 1 Yerkes & Plumb Edge Tool Factory 1 Yewdall's Woolen Factory 4 Yewdell's Factory 1 Yiddish (language) 1 Yocom's City Iron & Brass Foundry 5 Yokohama, Japan 1 Yonkers, New York 1 York and London Assurance Office 1 York County, Pennsylvania 1 York Haven, Pennsylvania 1 York Minster, England
