Joseph Smith Duncan and Adelaide Yochey

---

---

Husband Joseph Smith Duncan ¹

---

           Born: 15 Apr 1858 1
     Christened: 
           Died: 
         Buried: 

---

         Father: Joseph Duncan (      -1858) 1 2
         Mother: Mary Elizabeth Guy (1834-      ) 3 4

---

       Marriage: 9 Feb 1888 1

---

   Other Spouse: Margaret Sullivan (      -Abt 1886) 1 - 27 Jan 1886 1

---

---

Wife Adelaide Yochey ¹

---

           Born: 
     Christened: 
           Died: 
         Buried: 

---

Children

---

---

General Notes: Husband - Joseph Smith Duncan

---

When twenty-two years of age he left Pennsylvania for the West; first locating in Kansas. From there he went to Iowa. While in that state he became engaged in the hardware and machinery business, after which he returned to Sioux City, Iowa, and became an inventor and manufacturer. He first invented the Addressograph. His later inventions were the Dupligraph, Graphotype and Icecubator. His principal office was in Chicago where he resided, but he had offices in all the principal cities of the United States, employing more than one thousand people.

1 J. S. Burns, Biographical and Chronological History of the Stewart Family of Western Pennsylvania 1754-1912 (No publication data available), Pg 40.

2 —, The History of Allegheny County, Pennsylvania, Part II (Chicago, IL: A. W. Warner & Co., 1889), Pg 432.

3 —, The History of Allegheny County, Pennsylvania, Part II (Chicago, IL: A. W. Warner & Co., 1889), Pg 432, 480.

4 J. S. Burns, Biographical and Chronological History of the Stewart Family of Western Pennsylvania 1754-1912 (No publication data available), Pg 26.