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Go Back   Casebook Forums > Ripper Discussions > Police Officials and Procedures > Anderson, Sir Robert

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  #71  
Old 06-11-2011, 08:07 PM
Errata Errata is offline
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Wow Colin, that's like, extra thorough. Bravo Sir.

My only tweak (personally) would be to knock back the percentage of Russians and Polish that were Jews from 100% to about 75% or 80% as a high estimate.
My reasoning being that Jews coming over land were going to settle in the Germany region and the Netherlands, where there are longstanding Jewish populations (and who speak the same form of Yiddish). Also most were headed for America. This was also at the beginning of Zionism. Jews were emigrating to Palestine. About 250,000 Russian Jews entered the US in 1891 and 1892. A majority of Russian Jews did not leave Russia (as they could not afford it). I think about 40,000 Russian Jews were in Palestine by 1892... And there have never been as many of us as people think. I think the world population of Jews at this point was 14 million. It's not much more than that now.

London was simply not going to receive to sheer volume of Jewish immigrants That the US or even Central Europe did. Add in a war and an epidemic, and you have quite a few non Jewish Russians getting out as well.

So, that would be my argument. Take it however you will.
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  #72  
Old 06-16-2011, 04:51 PM
Colin Roberts Colin Roberts is offline
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Quote:
Originally Posted by Roy Corduroy View Post
What about Portsoken and Aldgate Ward, site of Mitre Square, City of London. Is a demographic workup possible?
Using the same 'methodology', Roy, I have drawn the following conclusion:

The City of London

The City of London Registration District

- Total Population (1891 Census): 38,320

- Estimated Total Jewish Population (1891): Approximately 2,295, i.e. 5.99%; But, no more than 2,524, i.e. 6.59%


But, we must make note of the fact that the vast majority of these Jews resided in the eastern-most reaches of the City: i.e. - as noted, by yourself - the Wards of Portsoken and Aldgate, as well as those of Bishopsgate Within and Bishopsgate Without, and perhaps that of the Tower.

I will attempt to estimate the Jewish proportion of the populace that resided within this 'area', when I am able to set aside the necessary amount of time.

~~~

I should also make note of the fact that I have concluded, ...

Holborn Registration District

- Total Population (1891 Census): 141,920

- Estimated Total Jewish Population (1891): Approximately 2,632, i.e. 1.85%; But, no more than 2,895, i.e. 2.04%


... and suggest that the overwhelming majority of these Jews resided within the boundaries of the Parish of St. Luke, which despite its exclusion from London's 'East End', was certainly within the broad vicinity of the 'killing field' of 'Jack the Ripper'.

Quote:
Originally Posted by Errata View Post
My only tweak (personally) would be to knock back the percentage of Russians and Polish that were Jews from 100% to about 75% or 80% as a high estimate.
My reasoning being that Jews coming over land were going to settle in the Germany region and the Netherlands, where there are longstanding Jewish populations (and who speak the same form of Yiddish). Also most were headed for America. This was also at the beginning of Zionism. Jews were emigrating to Palestine. About 250,000 Russian Jews entered the US in 1891 and 1892. A majority of Russian Jews did not leave Russia (as they could not afford it). I think about 40,000 Russian Jews were in Palestine by 1892... And there have never been as many of us as people think. I think the world population of Jews at this point was 14 million. It's not much more than that now.

London was simply not going to receive to sheer volume of Jewish immigrants That the US or even Central Europe did. Add in a war and an epidemic, and you have quite a few non Jewish Russians getting out as well.
For the sake of more accurate, and hence, ... more meaningful estimates, I would probably do just that; i.e. "knock back the percentage of Russians and Polish that were Jews from 100% to about 75% or 80%".

But, these 'estimates' are intended to err, decidedly, on the side of over-estimation, so that they may be emphatically qualified: i.e. ... no more than xx.xx%.

In estimating the percentages for the whole of London's metropolis, I utilized 87.50%, rather than 100.00%, for Russia and Poland; 50.00%, rather than 87.50%, for Holland; 62.50%, rather than 75.00%, for Germany and Austria; and 25.00%, rather than 37.50%, for Spain and Portugal.

~~~

Subjectively Speaking ...

I am inclined to believe that the areas that I have dubbed 'Immediate Vicinity' and 'General Vicinity', with respect to the 'killing field' of 'Jack the Ripper', ...


Murder 'Locale' - Immediate Vicinity (Red); General Vicinity (Red/Aqua) (Click Image, to Enlarge in flickr)
Underlying Aerial Imagery: Copyright Google Earth, 2007
Overlying Plots, Labels and Color-Shadings: Copyright Colin C. Roberts, 2010

Red: Accumulation of Probability Distribution, from Murder-Site Mean-Center (Green Dot: i.e. 0.00%), to Extent of Greatest Observed Deviation, i.e. Nichols Murder-Site (77.30%)
- 0.00 - 1.38 Standard Deviations
- Radius: 843.50 Yards
- Area: 0.72 Square-Miles
- Accumulation of Probability Distribution, as Calculated: 77.30%*

* Given a perception of late November 1888 that this series of murders would continue ad infinitum; the expectation should have been that 77.30% would occur within the specified circular area, i.e. within 1.38 Standard Deviations of the murder-site mean-center (green dot).

This can be loosely interpreted to mean that in late November 1888, the perceived probability of any impending subsequent murder occurring within this circular area, should have been 77.30%.

Red/Aqua: Accumulation of Probability Distribution, from Murder-Site Mean-Center (Green Dot: i.e. 0.00%), to Extent of Deviation, which Accords Ninety Percent (90.00%)
- 0.00 - 2.02 Standard Deviations
- Radius: 1,234.67 Yards
- Area: 1.55 Square-Miles
- Accumulation of Probability Distribution, as Stipulated: 90.00%*

* Given a perception of late November 1888 that this series of murders would continue ad infinitum; the expectation should have been that 90.00% would occur within the specified circular area, i.e. within 2.02 Standard Deviations of the murder-site mean-center (green dot).

This can be loosely interpreted to mean that in late November 1888, the perceived probability of any impending subsequent murder occurring within this circular area, should have been 90.00%.

... were, in 1888, approximately 40.00% - but, no more than 45.00% - Jewish.
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  #73  
Old 06-16-2011, 08:06 PM
Errata Errata is offline
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Is that a railway through the upper portion on the red area? Above Mrs. Chapman?
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