Question: Charles Libby graduated from a high school located at what address?

Context paragraphs:
Colerain High School (Cincinnati, Ohio): Colerain High School is a public high school located near Cincinnati, Ohio.  It is part of the Northwest Local School District.  The high school is located in Colerain Township, about 14 miles northwest of downtown Cincinnati.  The original school opened in 1924 under the name Colerain Centralized School at 4700 and 4850 Poole Road and is now Colerain Elementary School and Colerain Middle School.  Today's Colerain High School opened in 1964 at its newer address, 8801 Cheviot Road.  It is the largest public school in the Colerain area in terms of enrollment and building size, with over 2,200 students currently attending CHS in two buildings on campus, the main school building and the Career Center building.  Today, Colerain has grown to become one of the largest high schools in the state of Ohio.

Charles Libby: Charles Freeman Libby (January 31, 1844 - 1915) was an American politician and lawyer from Maine.  Libby, a Republican served as President of the Maine Senate from 1891 to 1892 and later as President of the American Bar Association.  Libby was born in Limerick, Maine and his family moved to Portland, Maine a few years later.  Libby graduated from Portland High School and Bowdoin College in 1864.  He interned with a local law firm and studied at Columbia Law School and was admitted to the bar in 1866.  In 1882, he served as Mayor of Portland, Maine and was elected to the Maine Senate in 1889, serving until 1892.

Portland High School (Maine): Portland High School is a public high school established in 1821 in Portland, Maine (Cumberland County), which educates grades 9–12.  The school is part of the Portland Public Schools district.  It is located at 284 Cumberland Avenue in downtown Portland.

St. Charles East High School: St. Charles East High School is a public four-year high school located in St. Charles, Illinois, a western suburb of Chicago, Illinois, in the United States.  It is part of Community Unit School District 303.  The school was known as "St. Charles High School" from its opening in 1977 until fall of 2000 when a second school in the city, St. Charles North High School, was opened.  At that time the school name changed to "St. Charles East High School."

San Bernardino High School: San Bernardino High School is a public high school located in the "Uptown neighborhood" of San Bernardino, California.  San Bernardino High School is located north of Downtown San Bernardino and south of San Bernardino's University District.  It is a part of the San Bernardino City Unified School District.  SBHS is the only high school which has been chartered as a city, known as Cardinal City.  SBHS is also the oldest high school in the City of San Bernardino.  The main address is 1850 North E Street.

Central High School (Springfield, Missouri): Central High School is a high school located in uptown Springfield, Missouri.  The school was Springfield's first high school to be built.  Construction of the building was completed in 1893.  The first graduating class graduated a year later in 1894 consisting of two out of the 76 seniors that were enrolled.  The school was renamed Central High School after the construction of Springfield's second oldest high school, Parkview High School, in 1956.  Central's mascot is a Bulldog, named Pug by the students at the time of his creation.  Central is also the home to the Kiltie Drum and Bugle Corps.  This corps was created by Dr. Robert Ritchie Robertson in 1926, and has the distinction of being the first all-female Scottish pipe and drum corps in the country.  U.S. News & World Report ranked Central High School as the 4th best school in Missouri in 2011.

Fremont High School (Indiana): Fremont High School is a public high school located in Fremont, Indiana, United States.  Fremont High School is the high school for the Fremont Community Schools Independent School District and one of four high schools within Steuben County, Indiana.  The present building contains grade nine through twelve and currently houses approximately 400 students and 31 staff members.  Enrollment figures show that the student population has been between 367 and 413 over the past ten years.  36% of students are considered economically disadvantaged based on data reported to the government.  Seventy-eight students graduated in 2012 yielding a 95.1% graduation rate.  Twenty-seven of those graduates earned an Indiana Academic Honors Diploma.  Fremont High School currently has a -3.9 state test achievement gap.  Current budget constraints threaten to decrease the number of teachers at Fremont High School.

Falls Church High School: Falls Church High School (FCHS) is a high school located in West Falls Church, unincorporated Fairfax County, Virginia.  While the school has a Falls Church, Virginia mailing address, the school does not serve the City of Falls Church, which is served by George Mason High School.  Principal Mike Yohe served two years as assistant principal for FCHS before being promoted to his current position during the summer of 2013 upon the departure of former principal Cathy Benner.  The school serves grades 9 through 12.  It was relocated from its former site in downtown Falls Church to this address in 1967.  Falls Church High's school motto is "Building on Our Success".  The mascot for the school is a Jaguar.  The school colors are dark green and white.

Davidson High School (Mobile, Alabama): W. P. Davidson High School is a four-year senior high school located in Mobile, Alabama.  Its first class graduated in 1963.  The school operates in the Mobile County Public School System.  There are roughly 1,700 students and 110-125 staff members at the school.  The birth of W.P. Davidson High School was in 1960 when a tenth-grade class was contained in the building of the Azalea Road Junior High School.Each year an additional grade was included, until the 1962-1963 school year when Davidson graduated its first class.That same year the modern building, which previously had been only a dream to Davidson students, became a reality.The much envied seniors were given the esteemed privilege of attending classes in the new structure during the last two weeks of school.  The dedication of W.P. Davidson was during September.  The first full year was the 1963-1964 session, in which case four grades, Freshman - Seniors, were taught.

Port Charlotte High School: Port Charlotte High School (PCHS) is a four-year, comprehensive, public high school located in Port Charlotte, Florida, US.  The school opened in 1981, graduated its first class in 1984, its mascot is the pirate, and the school motto is "Yes, I am a Pirate."  It is operated by Charlotte County Public Schools.  At one time, Port Charlotte High School was the largest high school in Charlotte County, with 2,082 students enrolled in grades Grades 9 through 12.  Enrollment was traditionally based on students' geographic locations, but is now by choice under the more recently created open enrollment program.  The school has grown much, and it survived Hurricane Charley.  The school's main feeders are Murdock Middle School, Port Charlotte Middle School, and Punta Gorda Middle School.  The school's top athletic rivals are Charlotte High School and Lemon Bay High School.  The property value of the school is $15,797,719 US.  PCHS has educated two NFL players and one MLB player who also performed in the 2008 Beijing Olympics.

Supporting paragraphs: Charles Libby Portland High School (Maine)
Answer: 284 Cumberland Avenue