Question: Howard Van Doren Shaw AIA (May 7, 1869 – May 7, 1926) was an American architect, he designed Clayton Mark's urban planned worker community in in East Chicago, in which US state?

Context paragraphs:
Clayton Mark: Clayton Mark (June 30, 1858 – July 7, 1936), one of the pioneer makers of steel pipe in the United States, was an industrialist in the Chicago area who founded the Mark Manufacturing Company in 1888, a firm for the fabrication and sale of water-well supplies and Clayton Mark and Company in 1900.  In addition, Mark founded Marktown, a planned worker community in Northwest Indiana on the National Register of Historic Places.  He was known for his philanthropy and civic contributions.

Marktown: Marktown is an urban planned worker community in East Chicago, Indiana, United States, built during the Progressive Era in 1917 from marshland to provide a complete community for workers at The Mark Manufacturing Company.

Lakeside Press Building: The Lakeside Press Building is a historic commercial building located at 731 S. Plymouth Ct. in downtown Chicago, Illinois.  The building served as a showroom, office, and printing press for the Lakeside Press.  The building was built in two stages; the southern half was completed in 1897, while the northern half was finished in 1901.  Architect Howard Van Doren Shaw designed the building, his first design of a commercial building.  Shaw's design features limestone quoins, piers, and decorations, curtain walls with cast iron spandrels on the floors housing the printing presses, and a projecting cornice.

East Chicago, Indiana: East Chicago is a city in Lake County, Indiana, United States.  The population was 29,698 at the 2010 census.  It is the home of Marktown, Clayton Mark's planned worker community.

Howard Van Doren Shaw: Howard Van Doren Shaw AIA (May 7, 1869 – May 7, 1926) was an American architect.  He became one of the best-known architects of his generation in the Chicago, Illinois area.  Shaw was considered a leader in the American Craftsman movement, best exemplified in his 1900 remodel of Second Presbyterian Church in Chicago.  He designed Marktown, Clayton Mark's planned worker community in Northwest Indiana.

Dr. Van Buren Knott House: The Dr. Van Buren Knott House is a historic building located in Sioux City, Iowa, United States.  Knott was a prominent local physician.  He had Chicago architect Howard Van Doren Shaw design this Colonial Revival-style house, which is considered an excellent example of the style.  The 2½-story brick structure features a symmetrical facade, an entrance porch with Doric columns, a Palladian window above the front entrance, a single-story semi-circular room in the back, and a hip roof roof with dormers. On the south side of the house is a full width porch, with a sleeping porch on the second floor.  A pergola in the back leads to a detached two-car garage, which was built a couple of years after the house.  The house and garage were listed together on the National Register of Historic Places in 1999.

Camp-Woods: Camp-Woods, is a historic estate with associated buildings located at Villanova, Delaware County, Pennsylvania and built on a 400' high spot which had been a 200-man outpost of George Washington's Army during the Valley Forge winter of 1777-8.  The house, built between 1910 and 1912 for banker James M. Willcox, is a two-story, brick and limestone, "F"-shaped house in an Italianate-Georgian style.  It measures 160 feet in length and 32 feet deep at the "waist."  It has a slate roof, Doric order limestone cornice, open loggia porches, and a covered entrance porch supported by Doric order columns.  The house was designed by noted architect Howard Van Doren Shaw (1869-1926).  The property includes formal gardens.  Its former carriage house is no longer part of the main estate.  The original tennis court is now also a separate property named "Outpost Hill".  The Revolutionary encampment is marked by a flagpole in a circular stone monument at the north-western edge of the property.  The inscription reads, "An outpost of George Washington's Army encamped here thro the winter of Valley Forge 1777-1778".

Ragdale: Ragdale is the summer retreat of Chicago architect Howard Van Doren Shaw, located in Lake Forest, Illinois.  It is also the home of the Ragdale Foundation.  Built in 1897, the house and barn were built in Shaw's typical Arts and Crafts manner.

Morse Dell Plain House and Garden: Morse Dell Plain House and Garden, also known as Woodmar, is a historic home located at 7109 Knickerbocker Parkway in Hammond, Lake County, Indiana.  The house was designed by noted Chicago architect Howard Van Doren Shaw and built in 1923.  It is a large two-story, Tudor Revival style brick dwelling with a 1 1/2-story service wing.  The landscape was designed by Jens Jensen in 1926.

Deerpath Hill Estates: Deerpath Hill Estates is a residential development in western Lake Forest, Illinois.  Developer Henry K. Turnbull and architect Stanley D. Anderson planned and built the original development in 1926.  Turnbull and Anderson designed the development according to the principles of the City Beautiful Movement and the ideas of Howard Van Doren Shaw, Anderson's mentor.  The individual houses were designed in popular revivalist styles, including English Tudor, Colonial, and French Norman.  The development was the first in Lake Forest to be planned and controlled entirely by its developer.

Supporting paragraphs: Howard Van Doren Shaw Marktown
Answer: Indiana