1851                9 Brinley Hall, Worcester, Massachusetts.

Van Alstin and Walker (Andrew Wemple Van Alstin & Samuel Lear Walker) were recorded in one advertisement and three announcements in the Worcester Daily Spy (Worcester, Massachusetts).  The advertisement ran from August 12 to 15, 1851.  Van Alstin and Walker are daguerreotyping almost everything, in doors and out.  They are constantly employed, and are turning out some of the finest pictures that ever was made in Worcester.  Those who would have a fine likeness would do well to call while they are in successful operation.  Their rooms will be found in the first building north of the American Temperance House, where they are making vignettes, and all other styles of pictures in a superior manner.

The first announcement appeared on August 23, 1851.  Dr. Van Alstin’s New daguerrean Rooms, (Up only one flight of stairs,) are the most comfortable and convenient rooms for Daguerreotyping in the city, and we are informed that his place is daily crowded by anxious inquirers after his Premium Pictures.  We also understand that Van Alstin and Walker are making preparations to astonish the natives by an exhibition of some of their handy work at the coming Fair.

The second announcement appeared on August 28, 1851.  Daguerrean Establishment!—Dr. Van Alstin’s (first building North American Temperance House.) Is decidedly the most convenient and comfortable place of the kind in the city.  It has been fitted up expressly for the business, and to meet the wants of the whole community; and all who have visited the Rooms agree in saying, “This is the place to get a likeness;” first, because the Dr. is the Oldest established Daguerrean now in the city.  Second, because he has now associated with him S. L. Walker, who is known throughout the country to be the most scientific and artistic Daguerrean in this country, and who has no equal in sitting his subjects, or securing good likenesses of children of all ages.  Any one who has sat for any other typer, and then sits to Walker, will at once be convinced of his superior skill and taste.  Thirdly, and lastly, because he uses none but the best of plates, the purest of gold to finish, and puts them up in the best of cases, and all, with Preservers, at lower prices than any other establishment in the State.

The third announcement appeared on September 3, 1851, Vol. VII, No. 83, P. 2.

Van Alstin & Walker are the most popular Daguerreans in the city.  They are doing up the pictures by hundreds.  So remember the place where they are all going.—for Walker’s inimitable and spiritual Likenesses.  Rooms first building north of American Temperance House.  Persons living in the city are invited to call in the morning, on cloudy days, as they will be less likely to have to wait for the throngs (who get in about the middle and after part of the day) from the country.  Be it remembered, that they make some of the finest pictures of adults, in cloudy weather.

Both Andrew Wemple Van Alstin & Samuel Lear Walker are recorded in other photographic directories, but not as partners.