Mickie McGowan was 69 in Horton Hears a Who! when she played the character 'Additional Voices (voice)'.
That was over 16 years ago in 2008.
In 2022 she died aged 84, starring in 58 films in her career, 16 of those after Horton Hears a Who! was first released. If she were alive today she would be 86.
In Horton Hears a Who!, I think Mickie McGowan looks: