The first generation Tom Swifts (1910-1928) are mostly good early-reading material for home-schooling. The teacher can point out the large differences in language (we don't say 'hark!' or 'ejaculated' every book like Tom does; nor place 13 commas in one sentence), and social inequality is not funny. I read a lot of old dime-novels and I know how attitudes have changed. Tom Swift always has his faithful Black servant who is depicted shamefully stereotypically.

But Eradicate declines to come to Africa with Tom, probably knowing what a bloodthirsty honky bigot Tom really is. Tom wants to kill kill kill elephants (and buffalo and rhino and hippo), which are already in decline. He would rather harvest ivory, and kill African people, than rush to rescue 'White Christians'. He does rescue the missionaries (a plot checklist point), by shooting "red Africans", and then shoots more elephants. And he gushes.

"That's just what I want. Elephant shooting in Africa! My! With my new electric rifle, and an airship, what couldn't a fellow do over in the dark continent! I've a good notion to go there! I wonder if Ned would go with me? Mr. Damon certainly would. Elephant shooting in Africa! In an airship! I could finish my new sky craft in short order if I wanted to. I've a good notion to do it!"
"Well, there's no special hurry, is there?" asked Mr. Swift. "The elephants in Africa are likely to stay there for some time. If you want to go, why don't you get right to work on the Black Hawk and make the trip? I'd like to go myself." "I wish you would, Dad," exclaimed Tom eagerly. "No, son, I couldn't think of it. I want to stay here and get well. Then I am going to resume work on my wireless motor. Perhaps I'll have it finished when you come back from Africa with an airship load of elephants' tusks."
"I've got an order for a pair of big elephant tusks—the largest I can get for a wealthy New York man,— and I'm anxious to fulfil the contract. The game isn't what it once was. There's more competition and the elephants are scarcer. So I've got to hustle."
"In fact you can fire through a house, and kill something on the other side." "Tom can fire at their TOES and put them out of business," declared Ned, who was eagerly advancing. "How about it, Tom?" "Well, I guess the electric rifle will come up to expectations. Say, Mr. Durban, they seem to be heading this way!" excitedly cried Tom, as the herd of big beasts suddenly turned and changed their course. "Yes, they are," admitted the old elephant hunter calmly. "But that won't matter. Take it easy. Kill all you can." "But we don't want to put too many out of business," said Tom, who was not needlessly cruel, even in hunting. "I know that," answered Mr. Durban. "But this is a case of necessity. I've got to get ivory, and we have to kill quite a few elephants to accomplish this. ... So all together now, we'll give them a volley. This is a good place! There they are. All line up now. Get ready!" "Give them some more! This is some of the best ivory I've seen yet!" "The sooner we get enough ivory the quicker we can go to the rescue of the missionaries."
....he turned and fired his two revolvers as fast as he could pull the triggers, into the very faces of the red imps who were seeking to drag him down. Again and again he fired, until he had emptied both cylinders of his weapons. He felt the grasps of the fiendish little men relax one by one.