I was so impressed by the examples of his work which illustrated the post and Robert J. Avrech's more complete article in the Jewish Press. Davka, on Shabbat our guests' last name was also Hammer, but they don't know of any relationship.
And a different sort of coincidence...
After Shabbat I came across an op-ed piece by someone who also does sketches, granted a totally different style and subject.
The pen and ink drawings of Hammer and Arthur are very different. Arthur's focus on the people and leave lots of empty space. Hammer's are to illustrate religious texts and blessing. The pictures are complex and the space is full of Hebrew prayers and text.
I enjoy them both.
Shavua Tov U'Mevorach
Have a Good and Blessed Week