Solutions .... Age (late 19th century) has 8 entries with similar clues

• 3-letter words
• abe19th-century prez
• 4-letter words
• adam19th-century French composer
• 5-letter words
• grimmGerman fairy-tale writing brothers of the 19th century
• ouidaWriter of the 19th-century novel, Under Two Flags
• 7-letter words
• harriet...... Beecher Stowe, 19th-century American writer
• 8-letter words
• populismDemocratic, collectivist movement in late 19th-century Russia
• larousse19th century French grammarian and lexicographer
• 9-letter words
• emilezola19th-century French author of Germinal and Nana