I am glad you like the Real Charts, I was reluctant to mention them on this site as some members here do not appreciate them.
The charts are sales of single A or double AA side records, so the Leslie A Hutchinson record was a double sided record. Generally speaking if both sides are listed then they were being asked for a lot by the public. If the other side of the record is not listed, even though it might contain a tune that is featured on Sheet Music charts, then the public rarely asked for that side of the record. There are some exceptions to this rule, but they are down to space reasons on my part for listing records on the charts.
Not all 78 records list a side designation also, but generally nearly all the Brunswick records do. However the Real Chart, doesn't list Record Labels as the chart lists ALL sales, even those sold in the UK, from other countries.
Though it is my intention to continue with the 1950's records at some point, my current intention is to continue with the 1966 charts and later with the 1985 charts, when BBC Four get round to showing 1985 TOTP next year hopefully.
Though it is slightly quicker to sort out the the top 40 charts than it is to do a top 100, they all take time to do. Some of the problem is to do with sorting out release date information. For example the 45 Cat site search results are restricted to only 100 records. And as the numbers of records released goes up in later years more than 100 records are issued each month, breaking the limit of the search results. Certainly by 1954 I would think that more than 100 records are released each month and that system doesn't end till about 1963, when the weekly one comes in. Even after that date it is not till 1965 that enough records are listed weekly on the 45 Cat site to get a full selection to use for the charts sorting out. This year I tried to sort out the new releases for 1964, but had to give up as far too many are listed only down to the month.
Education for anyone aged 12 to 16 has made a mess of the world!