Reconstructing total return from scratch

wmv

I'm looking at a number of delisted stocks that do not have proper total return series. For example, if you look at BCAP.L^F20, the price return (using TR.PriceClose) and the total return (using TR.TotalReturn) are identical. That can't be right because BCAP.L^F20 has dividends (using TR.DivAdjustedGross).

Since the data for dividends appear to be in tact, I want to reconstruct total return myself. I'm not sure which exact variable I should be using for returns, however, or if there are any other factors I should be considering.

Any help? Thanks.