On August 31, 1992, the T. Rowe Price Balanced Fund acquired substantially all of the assets of the Axe-Houghton Fund B, a series of Axe-Houghton Funds, Inc. As a result of this acquisition, the SEC requires that the historical performance information of the Balanced Fund be based on the performance of Fund B. Therefore, all performance information of the Balanced Fund prior to September 1, 1992, reflects the performance of Fund B and investment managers other than T. Rowe Price.

T. Rowe Price, a large no-load family ... took over six funds with total assets of $546 million from the struggling insurance company USF&G.
...
five [of the] USF&G funds, and the funds they have been mingled with, are Axe-Houghton Growth, now part of T. Rowe Price New America Growth; Axe-Houghton Income, into T. Rowe Price New Income; RMC European Emerging Companies, T. Rowe Price European Stock; Axe-Houghton Fund B, T. Rowe Price Balanced; USF&G Cash Reserves, T. Rowe Price Prime Reserve.

Prior to 1992, Axe-Houghton Associates was named Axe Core Investors, and was wholly-owned by Axe-Houghton Management, a subsidiary of insurer USF&G. Axe-Houghton Management’s services included mutual funds and institutional asset management. In 1992, concurrent with USF&G’s sale of Axe-Houghton Management’s mutual fund business to T. Rowe Price Associates, Inc., senior management of Axe-Core Investors purchased the institutional asset management business of Axe-Houghton Management. Axe-Core Investors subsequently changed its name to Axe-Houghton Associates. In 1993, the Hoenig Group Inc., a publicly-traded financial services company, purchased Axe-Houghton Associates.

Pioneer Fund was founded in 1928 by Philip Carret as the Fidelity Mutual Trust (not on any list in the SEC study).
https://www.corporateknights.com/responsible-investing/a-short-history-of-responsible-investing/

On p. 735, both Loomis-Sayles Mutual Fund, Inc. and Loomis-Sayles Second Fund, Inc. appear. Only the "second" fund appears on p. 877's short list.
"Prior to establishing CGM, Mr. Heebner was at Loomis, Sayles & Company where he managed [CGM Mutual Fund], then known as Loomis Sayles Mutual Fund."
https://cgmfunds.com/cgm-docs/2021-12-31-mutual-annual.pdf
Likewise, on p. 738 is listed "Second Investment Fund of Security Management Co. (predecessor of Broad Street Investing Co., Inc., The)". Broad Street Investing Corp. was the name of Seligman Common Stock Fund prior to April 26, 1982.
https://www.sec.gov/Archives/edgar/data/14358/000001435800000002/0000014358-00-000002.txt
https://www.referenceforbusiness.com/history2/65/J-W-Seligman-Co-Inc.html

The Security Management Company has presented to shareholders in its First and Second Investment Funds a plan for the combining of the two funds into a single corporation to be called the Broad Street Investing Company. It will be organized in Maryland with 500,000 shares of common stocks of no-par value. ...

NYTimes, October 14, 1929, p. 44
https://www.nytimes.com/1929/10/14/archives/investment-fund-merger-security-management-plans-to-unite-two-in.html
There's a much more complete list of investment trusts and investment companies in Appendix A of Part 1 of the SEC study, starting on p. 114.
https://play.google.com/store/books/details?id=1CoWAQAAMAAJ

The Security Management Company has presented to shareholders in its First and Second Investment Funds a plan for the combining of the two funds into a single corporation to be called the Broad Street Investing Company. It will be organized in Maryland with 500,000 shares of common stocks of no-par value. ...

Here are a couple of threads that may help:
Oldest Mutual Funds Still in Existence (2019 thread)
Second Oldest Stock Fund Is As Nimble As A Teenager (2014 thread)
...
Much obliged, msf. I had seen the 2019 thread but needed to reread it (e.g., your history of the Scudder funds). The 2014 thread was also illuminating, this post follows up on it.
I am starting from the list of 36 open-ended companies in the 1939 SEC report (https://catalog.hathitrust.org/Record/010424070), Part 2, p. 877, Table 264 (if anyone is curious about this "survivorship bias free" list; it shows all open-ended companies with greater than $500,000 under management as of 1935. For reference, MITTX already had $81 million under management by that year, so many of these were tiny even for then).
The 2014 thread mentions the CGM, Pioneer and Seligman funds as among the oldest ten. But none of these names appears in the SEC list. Nor do any of these names appear in the 1946 Wiesenberger. So, sometime after 1945, three funds that were on the SEC list had a name change or were merged into another, per your discussion of Century Shares Trust. Or the way 'First Investment Counsel' (on the SEC list) became Scudder, Stevens & Clark, which I wouldn't have known without your post (Wiesenberger doesn't mention the older name).
Anyone know what the original names of the CGM, Pioneer and Seligman funds were?

Crypto advocates point out that Bitcoin has fallen by more than 50% eight times since its 2009 launch, and three times since 2018, and it’s recovered every time. And it’s been a top-performing asset class with better than 35% annualized returns over the last three and five-year periods and 80% annualized returns over ten years. In addition, an entire crypto industry has developed, which is expanding rapidly and being widely accepted by Wall Street, businesses, and some governments.
This week’s guest is a believer. He is Matt Hougan, Chief Investment Officer and former Global Head of Research at Bitwise Asset Management, a cryptocurrency asset manager founded in 2017.
I began the interview by asking Hougan about the role crypto assets play in a portfolio, considering they act like stocks.