Question: Where is the headquarters of the company that produced the 'Time Machine' series of science fiction stories?

Context articles: The Best Science Fiction Stories: 1954
The Best Science Fiction Stories: 1951
The Philip K. Dick Reader
The Best Science Fiction Stories: 1952
Time Machine series
Microcosmic God
Second Variety (1991 collection)
The Father-Thing (collection)
The Best of Philip K. Dick
Boys' Life

The Best Science Fiction Stories: 1954 is a 1954 anthology of science fiction short stories edited by Everett F. Bleiler and T. E. Dikty.
 An abridged edition was published in the UK by Grayson in 1956 under the title "The Best Science Fiction Stories: Fifth Series".
 The stories had originally appeared in 1953 in the magazines "Avon Science Fiction and Fantasy Reader", "Fantasy and Science Fiction", "Amazing Stories", "Fantastic", "Astounding" and "Galaxy Science Fiction".
The Best Science Fiction Stories: 1951 is a 1951 anthology of science fiction short stories edited by Everett F. Bleiler and T. E. Dikty.
 An abridged edition was published in the UK by Grayson in 1952 under the title "The Best Science Fiction Stories: Second Series".
 Most of the stories had originally appeared in 1950 in the magazines "Fantasy and Science Fiction", "Worlds Beyond", "Astounding", "Other Worlds", "Galaxy Science Fiction", "Fantastic Story Quarterly", "Startling Stories", "Collier's Weekly", "Thrilling Wonder Stories" and "Weird Tales".
The Philip K. Dick Reader is a collection of science fiction stories by American writer Philip K. Dick.
 It was first published by Citadel Twilight in 1997.
 Many of the stories had originally appeared in the magazines "If", "Science Fiction Adventures", "Science Fiction Stories", "Orbit", "Fantasy and Science Fiction", "Imagination", "Future", "Galaxy Science Fiction", "Beyond Fantasy Fiction", "Satellite", "Imaginative Tales", "Fantastic Universe" and "Space Science Fiction".
 It is identical in content and order to the edition of volume 3 of the Collected Stories of Philip K. Dick produced by the same publisher apart from the substitution of three stories in positions 21-23 of 24 and the omission of the end notes in the Collected Stories edition.
 At press time, stories 21 and 24 had already been made into successful movie adaptations and stories 22 and 23 had been optioned.
The Best Science Fiction Stories: 1952 is a 1952 anthology of science fiction short stories edited by Everett F. Bleiler and T. E. Dikty.
 An abridged edition was published in the UK by Grayson in 1953 under the title "The Best Science Fiction Stories: Third Series".
 The stories had originally appeared in 1951 and 1952 in the magazines "Super Science Stories", "Fantasy and Science Fiction", "Galaxy Science Fiction", "Worlds Beyond", "Startling Stories", "New Worlds", "Marvel Science Fiction", "Esquire", "Man’s World" and "Suspense Magazine".
The Time Machine series of science fiction stories for children, published between 1959 and 1989 in "Boys' Life" magazine, featured a group of American Boy Scouts who acquire an abandoned time machine.
 The Polaris Patrol visited the future and the past, sometimes recruiting new Scouts.
 The stories used the time machine as a framework for history lessons, but also explored the consequences of having a time machine (as well as the various technologies the boys who discovered it obtain from the future).
"Microcosmic God" is a science fiction novelette by American writer Theodore Sturgeon.
 Originally published in April 1941 in the magazine "Astounding Science Fiction", it was recognized as one of the best science fiction stories of all time by the Science Fiction Writers of America in 1970, and was named as one of the best science fiction stories in polls by "Analog Science Fiction and Fact" (the renamed "Astounding") in 1971 and "Locus" in 1999.
 In 1976, it was also published as a comic book version (drawn by Adolfo Buylla) in issue 3 of "Starstream: Adventures in Science Fiction", a comic anthology in four issues by Gold Key Comics.
Second Variety is a collection of science fiction stories by Philip K. Dick.
 It was first published by Citadel Twilight in 1991 and reprints Volume III of "The Collected Stories of Philip K. Dick" with the addition of the story "Second Variety".
 Many of the stories had originally appeared in the magazines "If", "Science Fiction Adventures", "Science Fiction Stories", "Orbit", "Fantasy and Science Fiction", "Imagination", "Future", "Galaxy Science Fiction", "Beyond Fantasy Fiction", "Satellite", "Science Fiction Quarterly", "Imaginative Tales" and "Space Science Fiction".
The Father-Thing is a collection of science fiction stories by American writer Philip K. Dick.
 It was first published by Gollancz in 1989 and reprints Volume III of "The Collected Stories of Philip K. Dick".
 It had not previously been published as a stand-alone volume.
 Many of the stories had originally appeared in the magazines "If", "Science Fiction Adventures", "Science Fiction Stories", "Orbit", "Fantasy and Science Fiction", "Imagination", "Future", "Galaxy Science Fiction", "Beyond Fantasy Fiction", "Satellite", "Science Fiction Quarterly" and "Imaginative Tales".
The Best of Philip K. Dick is a collection of science fiction stories by Philip K. Dick.
 It was first published by Del Rey Books in 1977.
 Many of the stories had originally appeared in the magazines "Planet Stories", "Fantasy and Science Fiction", "Space Science Fiction", "Imagination", "Astounding Stories", "Galaxy Science Fiction", "Amazing Stories", "Science Fiction Stories" and "Startling Stories", as well as the anthologies "Dangerous Visions" and "Star Science Fiction Stories No.3".
Boys' Life is the monthly magazine of the Boy Scouts of America (BSA).
 Its targeted readership is young American males between the ages of 6 and 18.
 The magazine has its headquarters in Irving, Texas.