From Bulbapedia, the community-driven Pokémon encyclopedia.
Delia Ketchum (Delilah is also seen; Japanese: ハナコ Hanako), also known as Mrs. Ketchum (Japanese: ママさん Mama-san) is Ash's mother in the Pokémon anime.
Delia Ketchum is a relatively reserved woman. Despite striking some as unintelligent, she was once a student of Professor Oak, along with Spencer Hale, possibly indicating intelligence normally unthought of her.
She lives in Pallet Town with Mimey, her Mr. Mime, which she obtained in It's Mr. Mime Time. She was seen taking care of it while Ash was participating in the Ever Grande Conference.
According to Takeshi Shudō's novelization, she runs Pallet Town's only restaurant, Pallet House, which she inherited from her mother. When she was younger, she dreamed of becoming both a model and a Pokémon trainer, but abandoned those dreams to run the restaurant after Ash was born. Brock once commented that she would make a great Pokémon trainer because of her perseverance.
She is usually a quiet, cheerful woman, but when angered, she makes it known, not caring who she is talking to, once telling Entei he should be ashamed of himself in Spell of the Unown.
This listing is of Delia's Pokémon in the anime:
In the manga
Delia appears briefly in the manga series The Electric Tale of Pikachu, which is based on the anime.
In Pikachu, I See You!, she and Ash discover Pikachu under the floorboards of the house, chewing on the wiring to eat the electricity. Later, she is shown giving Ash a tearful farewell as he leaves on his Pokémon Trainer's journey.
A younger Delia with Professor Oak and Spencer Hale
|| ハナコ Hanako
|| From 花子. Means flower child. Also often used as an example female name, similar to Jane Doe in English.
| English, All-European
|| Delia Ketchum
|| May be a reference to Dahlia, a flower. Ketchum is a pun on "Gotta Catch 'em all" the original slogan of the franchise.
|| 영자 Yeongja
|| 花子 Huāzǐ
|| Same as 花子 Hanako.