PHOTOS: Presidential trees
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Eric and Gloria Sundback have just turned out a grand champion Christmas tree for a record fourth time -- which means their West Virginia tree farm will again provide a two-story fir for the Blue Room of the White House this Christmas. (Carolyn Cole / Los Angeles Times)
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The physical work has gotten tougher in recent years, but Eric Sundback, 82, still operates about 30 of 100 acres with his wife, focusing on tree genetics. (Carolyn Cole / Los Angeles Times)
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Eric and Gloria Sundback have traveled tens of thousands of miles to collect seeds for their tree farm. (Carolyn Cole / Los Angeles Times)
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Gathering the seeds for their genetically engineered trees can be hard work. Gloria Sundback is good at swiping them from squirrels, which can crack 10 pine cones a minute. (Carolyn Cole / Los Angeles Times)
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The national Christmas tree grand champion for 2009, which the Sundbacks grew on their 100-acre tree farm in Shepherdstown, W.Va. (Carolyn Cole / Los Angeles Times)