Aspects of the map-and-chart:
A). 1928 location-map of the 16 MLB teams. Home cities listed, then franchises listed in smaller text below the home-city name. Each team (franchise) has at least one logo from that year (in this case, 1928); the logos are sized to reflect average attendance from that season: the higher-drawing teams have larger logos-and-or-multiple-logos. In this case, that applies to the top-drawing teams in the NL in 1928 (the Chicago Cubs and the NY Giants, as well as the Brooklyn Robins [aka Dodgers], and the St. Louis Cardinals), and it applies to the top-drawing teams in the AL in 1928 (the New York Yankees, as well as the Philadelphia Athletics). Similarly, the lower-drawing teams in MLB that season have much smaller logos on the map (in this case, such as the Boston Braves and the Philadelphia Phillies).

In my first MLB retro map, I took a look at attendance figures – by team – in this era…{here, 1925 MLB retro map [Pirates win WS].}

B). Population of US cities (1920 figures). A small chart showing the 25-then-largest cities of the USA in 1920 is shown at the upper-left-hand side of the map. MLB representation-by-city is noted there. In my 1926 and 1927 retro MLB maps, I took a look at Populations of US Cities (1920 figures), with a small expanded chart of the one on the map…{1926 MLB retro map [Cardinals win WS].} {1927 MLB retro map [Yankees win WS].}

C). Attendance {data from baseball-reference.com}. 1928 MLB team average attendances are shown at the upper-right of the map. Two paragraphs above is a link to an article I wrote about MLB attendance team-by-team, circa the 1920s.

D). World Series champions (for 1928, the New York Yankees). World Series champions are represented by a prominent section at the top of the map. A photo of the manager of the WS winner is shown (Miller Huggins), along with 7 photos of the top players on the WS-winning Yankees of 1928 (Babe Ruth, Lou Gehrig, Herb Pennock, Waite Hoyt, Tony Lazzeri, George Pigras, Earle Combes). The players shown were determined by WAR [Wins After Replacement]. Players who have been elected to the Baseball Hall of Fame [HoF] are noted, by a bronze-colored square with year of HoF election listed.

E). Top players in MLB for 1928 are shown at the foot of the map. Photos of stats leaders in several categories are shown…for Pitchers: ERA, Wins, and WAR (Pitchers); for Position-Players: Batting Average (BAvg), HR, RBI, OPS, and WAR. Again, HoF players are noted.

1928 MLB stats leaders…
ERA, Dazzy Vance (Brooklyn). Wins: [joint-best] Larry Benton (NY baseball Giants) / Burleigh Grimes (Pittsburgh). WAR (for pitchers), Dazzy Vance (Brooklyn). BAvg, Rogers Hornsby (Boston [NL]). HR, Babe Ruth (NY [AL]). RBI, Lou Gehrig (NY [AL]). OPS, Babe Ruth (NY [AL]). WAR (for position players), Babe Ruth (NY [AL]).

F). MLB team sections: flanking sections, in alphabetized chart-form, show the 8 NL franchises (of 1928) on the far-left of the map, and the 8 AL franchises (of 1928) on the far-right of the map. The sections include several things…In each franchise’s rectangular box is shown their uniforms from that season, and at least one of their primary logos from that season, along with a narrow bar that is in the team’s colors that season. A photo of the present-day-franchise’s home ball cap is shown [2020 ball caps]. And franchise info is shown for each team, including: years of existence [seasons in NL or AL], location(s), league-titles [Pennants] and MLB titles [WS titles], plus any franchise movements. Standard abbreviations for each team are used. As far as former teams go, to avoid any confusion, I used baseball-reference.com’s abbreviations. {Here: baseball-reference.com/about/[team_IDs](MLB team abbreviations).}

…

1928: New York Yankees win their second straight World Series title, with another Series-shutout…

In 1928, the American League’s New York Yankees won their second consecutive (and then-3rd overall) World Series title. Coming off the heels of the legendary 1927 Yankees (when they swept the Pittsburgh Pirates in 4 games), the 1928 Yankees repeated, by sweeping the National League’s St. Louis Cardinals. The Yankees beat out the Philadelphia Athletics by 2.5 games for the 1928 AL pennant; the Cardinals beat out the Cubs (by 2 games) and the Giants (by 4 games), for the NL pennant.

The Yankees used only 3 pitchers in the 1928 World Series: Waite Hoyt, Tom Zachary, and George Pipgras {see photo below}. Between them, they pitched 4 Complete Games. In the 1st game, RHP Waite Hoyt held the Cardinals to just 3 hits. Hoyt went the distance, and the Yankees won 4-1, with Bob Meusal hitting a HR. In the 2nd game, RHP George Pipgras also went the full 9 innings, as the Yanks won 9-4. Lou Gehrig hit a 3-run HR in the 1st inning. Pipgras gave up just 4 hits.

Two days later (Oct. 7 1928) in St. Louis, Missouri, the Yankees won their 3rd straight complete-game-win. This time, the pitcher was journeyman LHP Tom Zachary. (Zachary was picked up off waivers from Washington in August, replacing the injured Herb Pennock.) The Yanks won 7-3, on the strength of Lou Gehrig’s 2 HRs. In the 4th and final game, Waite Hoyt again threw a complete game. The Yankees hit 4 HRs…3 HRs by Babe Ruth, and one HR by Lou Gehrig (his 4th of the Series). The final score, again, was 7-3. The Yankees had swept, and they had avenged their 1926 Fall Classic loss to the Cardinals.

1927 / ’28 was the first time a team had ever swept back-to-back World Series contests. No other ball club in Major League Baseball has accomplished the feat of back-to-back World Series sweeps…but the New York Yankees have gone on to do it two more times…in 1938 / ’39, and then in 1998 / ’99.

Below: 1928 New York Yankees: the first team to ever sweep back-to-back World Series titles…

Photo and Image credits above -
Photo from right-field bleachers at Yankee Stadium [opening game of 1928 World Series], from a screenshot from a video uploaded by New York Yankees at youtube.com. Waite Hoyt, Tom Zachary, George Pipgras [photo taken before game 1 of the 1928 WS]: photo from gettyimages.com. Gehrig and Ruth [circa 1928], photo from Wikimedia Commons via pinstripealley.com.

___

Photo and Image credits on the map page…
1928 World Series champions New York Yankees…
Babe Ruth [colorized photo from 1928], photo unattributed at twitter.com/[@baseballincolor]. Lou Gehrig [photo circa 1927], from Bettman-Corbis/Getty Images via si.com. Herb Pennock [photo circa 1928], unattributed at cmgworldwide.com. Waite Hoyt [photo circa 1928], unattributed at baseballhall.org. Tony Lazzeri [photo from 1929], photo unattributed at mearsonlineauctions.com. George Pipgras [photo circa 1928], unattributed at fold3.com. Earle Combs [photo circa 1927], unattributed at pinterest.com. Miller Huggins [colorized photo circa 1929], photo unattributed and colorized by Don Stokes at baseballhistorycomesalive.com. “Murderers Row”, featuring Gehrig, Ruth, Combes, Lazzeri [colorized photo from 1929], photo unattributed at flickr.com/[Willie Brown]. Photo of 1928 World Series Game 1 ticket, from hugginsandscott.com.

1928 MLB stats leaders…
Dazzy Vance (BRO) [photo circa 1928], photo unattributed at sabr.org. Larry Doyle (NYG) [photo circa 1928], trading card from vintagecardprices.com. Burleigh Grimes (PIT) [photo circa 1929], photo unattributed at oldbucs.blogspot.com. Dazzy Vance (BRO) [photo circa 1924], photo unattributed at mearsonlineauctions.com. Rogers Hornsby (BSN) [photo from 1928], photo from the cover of Time Magazine via File:Rogers Hornsby 1928.jpg (commons.wikimedia.org). Babe Ruth (NYY) [photo circa 1927], unattributed at huntauctions.com. Lou Gehrig (NYY) [photo circa 1928], unattributed at sabr.org. Babe Ruth (NYY) [photo circa 1927], from Bettman-Corbis/Getty Images via si.com.

Thanks to all at the following links…
Sources:
-University of Texas at Austin online archive (Perry-Castañeda Library Map Collection), legacy.lib.utexas.edu/maps/united_states.html.
-Baseball-Reference.com, 1928 AL season; 1928 NL season.
-Baseball Hall of Fame’s Dressed to the Nines (uniforms illustrated by Marc Okkonen), exhibits.baseballhalloffame.org/dressed_to_the_nines/database.htm.
-US cities’ populations (1920 figures), biggestuscities.com/1920.
-Attendances. Source: baseball-reference.com/leagues/MLB/1928-misc.shtml.
Most logos from:
-SportsLogos.net, sportslogos.net/[MLB logos].
-1928 Detroit Tigers home jersey script- logo, illustration from flickr.com/photos/heritagesportsart.
-1928 NY Giants road cap logo, photo from sportscards.com.