1850                54 Arch Street, Philadelphia, Pennsylvania.

1850-1855       34 & 54 Arch Street, Philadelphia, Pennsylvania.[1]

1858                Unknown Address, Philadelphia, Pennsylvania.

N. D.  The New York Historical Society’s Dictionary Of Artist In America 1564-1860.  (New Haven, Connecticut.  P. 186.

Douglass, Robert M. J.  (1809-1887).  Portrait, sign, and ornamental lithographer.  A Negro born in Philadelphia, February 8, 1809, Robert Douglass studied under Thomas Sully, Except for visits to Haiti, and England, he seemed to have worked almost exclusively in Philadelphia.  He exhibited one portrait at the Pennsylvania Academy in 1834.  He was recorded in the 1850 Census as Robert Douglass, engraver, age 37, mulatto, owning realty valued at $1,000; others in the house were his wife Sarah, age 21, mulatto, $1,000 in realty; and James F. Douglass, age 35, hairdresser, $1,000 in realty, the artist died probably in Philadelphia, on October 26, 1887.

1850 January 17.  The Pennsylvania Freeman.  (Philadelphia, Pennsylvania.)  January 17, 1858, P. 4.

Daguerreotypes, The Arch Street Gallery of Daguerreotype.  Price from $1.50 to $5.  The most perfect Instrument that can be procured, is here made use of.  Students of this fascinating Art, furnished with Apparatus and Instruction.  No. 54 Arch St.  Philada.  R. Douglass.           

1858 September 17.  The Daily Exchange.  (Baltimore, Maryland.)  September 17, 1858, Vol. I, No. 178, P.1.

The Colored National Emigration Convention has finished its sitting at Chatham, C. W.  The results which have been reached at this last convention, are the recommendation of a select emigration of the enterprising among the colored people, and the appointment of a “Niger Valley Exploring Party.”  The parties already appointed are Robert Douglas, of Philadelphia, Dr. Delany, of Chatham, C. W., and Robert Campbell, of Philadelphia.  Mr. Douglas goes out as an Artist, Photographer, &c., Mr. Campbell as a Naturalist and Botanist.  Their object is to explore the fertile valley of the Niger, the region known as the Yoruba county, and ascertain whether the reports which have been rendered will warrant an emigration to that land.

---

[1] Directory of Pennsylvania Photographers, 1839-1900.