Roberts Blossom was 65 in Home Alone when he played the character 'Marley'.
That was over 34 years ago in 1990.
In 2011 he died aged 87, starring in 32 films in his career, 6 of those after Home Alone was first released. If he were alive today he would be 100.
In Home Alone, I think Roberts Blossom looks: