Question:  Robert Frost and Thomas Sigismund Stribling, have which nationality in common?

Context paragraphs:
The Store: The Store is a 1932 novel by Thomas Sigismund Stribling. It won the Pulitzer Prize for the Novel in 1933.  It is the second book of the "Vaiden" trilogy, comprising "The Forge", "The Store", and "Unfinished Cathedral".  All three books in the trilogy have been kept in print since the mid-1980s by the University of Alabama Press.

Thomas Sigismund Stribling: Thomas Sigismund Stribling (March 4, 1881 – July 8, 1965) was an American writer and lawyer who published under the name T.S. Stribling.  He won the Pulitzer Prize for the Novel in 1933 for his novel "The Store".

Robert Frost: Robert Lee Frost (March26, 1874January29, 1963) was an American poet.  His work was initially published in England before it was published in America.  He is highly regarded for his realistic depictions of rural life and his command of American colloquial speech.  His work frequently employed settings from rural life in New England in the early twentieth century, using them to examine complex social and philosophical themes.  One of the most popular and critically respected American poets of the twentieth century, Frost was honored frequently during his lifetime, receiving four Pulitzer Prizes for Poetry.  He became one of America's rare "public literary figures, almost an artistic institution."  He was awarded the Congressional Gold Medal in 1960 for his poetic works.  On July 22, 1961, Frost was named poet laureate of Vermont.

Robert Frost Farm (Ripton, Vermont): The Robert Frost Farm, also known as the Homer Noble Farm, is a National Historic Landmark in Ripton, Vermont.  It is a 150 acre farm property off Vermont Route 125 in the Green Mountains where American poet Robert Frost (1874-1963) lived and wrote in the summer and fall months from 1939 until his death in 1963.  The property, historically called the Homer Noble Farm, includes a nineteenth-century farmhouse and a rustic wooden writing cabin (where Frost often stayed).  The property is now owned by Middlebury College.  The grounds are open to the public during daylight hours.

Robert Frost Farm (South Shaftsbury, Vermont): The Robert Frost Farm, also known as "The Gully", is a historic farm property on Buck Hill Road in South Shaftsbury, Vermont.  The 1790 farmstead was purchased in 1929 by poet Robert Frost, and served as his primary residence until 1938.  During this period of residency, Frost was awarded two Pulitzer Prizes for his poetry.  The property was designated a National Historic Landmark and listed on the National Register of Historic Places in 1968; its landmark designation was withdrawn in 1986 after its private owners made alterations that destroyed important historic elements of the property.

Birches (poem): "Birches" is a poem by American poet Robert Frost(1874-1963).  It was collected in Frost's third collection of poetry "Mountain Interval" that was published in 1916.  Consisting of 59 lines, it is one of Robert Frost's most anthologized poems.  The poem "Birches", along with other poems that deal with rural landscape and wildlife, shows Frost as a nature poet.

Robert Frost Farm (Derry, New Hampshire): The Robert Frost Farm in Derry, New Hampshire is a two-story, clapboard, connected farm built in 1884.  It was the home of poet Robert Frost from 1900 to 1911.  Today it is a New Hampshire state park in use as a historic house museum.  The property is listed in the National Register of Historic Places as the Robert Frost Homestead.

A Masque of Reason: A Masque of Reason is a 1945 comedy written by Robert Frost.  This short play purports to be the chapter 43 of the book of Job, which only has 42 chapters.  Thus, Frost has written a concluding chapter in the form of the play.In this play, Robert Frost like John Milton in Paradise Lost ,wants to justify God's ways to man.  This play is not of high quality because of the use of slang language and his shallow view of divine nature and human nature.The image of Steeple Bush is apparent in describing the tree.

Steeple Bush: This is one of Robert Frost's smaller collections.  This poetic collection was published in New York Times  on June 1st, 1947. It is dedicated to Frost's six grandchildren.  There is tenderness and passive sadness in this volume.  In this collection, with 'Spiritual Themes' ,Robert Frost  portrays religion in an ambiguous way.

Robert Frost House: The Robert Frost House is an historic house at 29-35 Brewster Street in Cambridge, Massachusetts.  It consists of four wood-frame townhouses, 2-1/2 stories in height, arranged in mirror image styling.  Each pair of units has a porch providing access to those units, supported by turned posts and with a low Stick style balustrade.  The Queen Anne/Stick style frame house was built in 1884, and has gables decorated with a modest amount of Gothic-style bargeboard.  The house was home to poet Robert Frost for the last two decades of his life.

Supporting paragraphs: Robert Frost Thomas Sigismund Stribling
Answer: American