Alvan Clark - Linda Hall Library
Alvan Graham Clark - Wikipedia
Selecting Our Meade LX200 - Frosty Drew Observatory & Sky Theatre
In Praise of the Long Refractor - Page 2 - Refractors - Cloudy Nights
400 Years of the Telescope
J. B. ALLEN, Springfield Mass. Early American monocular microscope, c. 1858
Alvan Clark refractor? - Classic Telescopes - Cloudy Nights
ALVAN CLARK (1804-1887),GEORGE BASSETT CLARK (1827-1891)AND ALVAN GRAHAM CLARK
HALL OF MIRRORS - The Public "I"
Alvan Graham Clark (1832-1897) - Find a Grave Memorial
Movers | Nature
9" F/18 "Jumbo" - Stallion Springs, Ca - Photo Gallery - Cloudy Nights
Post a Photo of a Historic Telescope - Page 7 - Classic Telescopes - Cloudy Nights
Post a Photo of a Historic Telescope - Page 8 - Classic Telescopes - Cloudy Nights
5" Clark refractor from John Briggs' collection
Alvan Clark & Sons - Wikipedia
ALVAN CLARK (1804-1887),GEORGE BASSETT CLARK (1827-1891)AND ALVAN GRAHAM CLARK
Alvan Clark 24" Refractor (Lowell Observatory) Review
Big Cigar Gallery
Alvan Clark - Wikipedia
Alvan Clark & Sons - Wikipedia
Using a 26" Clark - Refractors - Cloudy Nights
Post a Photo of a Historic Telescope - Page 7 - Classic Telescopes - Cloudy Nights
400 Years of the Telescope
Post a Photo of a Historic Telescope - Page 7 - Classic Telescopes - Cloudy Nights
Trevor Observatory
Alvan Clark 24" Refractor (Lowell Observatory) Review
