I haven't read through them yet, I'm just trying to find them all first NP = page on newspaper, GN = page on google news Apr 16, NP p11, GN p11 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290416&printsec=frontpage&hl=en Apr 18, NP p14, GN p14 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290418&printsec=frontpage&hl=en Apr 22, NP p11, GN p10 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290422&printsec=frontpage&hl=en Apr 24, NP p11, GN p10 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290424&printsec=frontpage&hl=en Apr 26, NP p23, GN p21 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290426&printsec=frontpage&hl=en Apr 27, NP p17, GN p27 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290427&printsec=frontpage&hl=en Apr 29, NP p15, GN p15 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290429&printsec=frontpage&hl=en Apr 30, NP p10, GN p10 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290430&printsec=frontpage&hl=en May 1, NP p15, GN p15 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290501&printsec=frontpage&hl=en May 2, NP p10, GN p10 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290502&printsec=frontpage&hl=en May 3, NP p26, GN p27 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290503&printsec=frontpage&hl=en May 4, NP p11, GN p11 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290504&printsec=frontpage&hl=en
Each says what the next is about, so you can see if there are any gaps between issues. The one from the 27th says installment 10. The last one I've got says the next one will be written by his wife. So that works out as 16. With the missing ones all being before the one from the 27th From what each says about them, I think there's one missing on the 25th, and the rest of the missing ones are before Apr 24th
Actually, there might have been more. I have the first 15, and the last of these announces a story of Johnson's relationship with women in next issue, but I never found it. 1. Jack Dempsey overrated 2. Feels sorry for Dempsey regarding his bout in Chicago vs Tunney 3. Wills would have been easy for Dempsey 4. Mason-Dixon line jinx to black boxers 5. Steve Brodie's jump off the bridge, 1st meeting with Joe Walcott 6. Battle royal, how George Siler discovered Johnson 7. Joe Walcott great champion 8. Leonard best of moderns 9. Faked the KD in Ketchell bout 10. Fitz greatest heavyweight, gives a list of top 12 heavyweights 11. Tom Sharkey 12. Johnson's advice to Young Corbett helped him beat Terry McGovern 13. Johnson-Jeffries bout 14. Joe Grimm bout 15. Dive vs Jess Willard
16. Women. 17. written by Mrs. Irene Johnson 18th and last. About TAD (T.A. Dorgan), who died on May 2 that year.
I think the last one I posted is the one you're missing. It says the next one is written by his wife 1. Jack Dempsey overrated 2. Feels sorry for Dempsey regarding his bout in Chicago vs Tunney Apr 16, NP p11, GN p11 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290416&printsec=frontpage&hl=en 3. Wills would have been easy for Dempsey 4. Mason-Dixon line jinx to black boxers Apr 18, NP p14, GN p14 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290418&printsec=frontpage&hl=en 5. Steve Brodie's jump off the bridge, 1st meeting with Joe Walcott 6. Battle royal, how George Siler discovered Johnson Apr 22, NP p11, GN p10 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290422&printsec=frontpage&hl=en 7. Joe Walcott great champion Apr 24, NP p11, GN p10 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290424&printsec=frontpage&hl=en 8. Leonard best of moderns 9. Faked the KD in Ketchell bout Apr 26, NP p23, GN p21 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290426&printsec=frontpage&hl=en 10. Fitz greatest heavyweight, gives a list of top 12 heavyweights Apr 27, NP p17, GN p27 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290427&printsec=frontpage&hl=en 11. Tom Sharkey Apr 29, NP p15, GN p15 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290429&printsec=frontpage&hl=en 12. Johnson's advice to Young Corbett helped him beat Terry McGovern Apr 30, NP p10, GN p10 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290430&printsec=frontpage&hl=en 13. Johnson-Jeffries bout May 1, NP p15, GN p15 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290501&printsec=frontpage&hl=en 14. Joe Grimm bout May 2, NP p10, GN p10 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290502&printsec=frontpage&hl=en 15. Dive vs Jess Willard May 3, NP p26, GN p27 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290503&printsec=frontpage&hl=en 16. Love life May 4, NP p11, GN p11 https://news.google.com/newspapers?nid=SCE0ypLQHGcC&dat=19290504&printsec=frontpage&hl=en 17. Mrs Irving Johnson on Jack Johnson May 5